Input: The computer is as expected, and worth the money.

Output: [['laptop general', 'positive'], ['laptop price', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: The 8.1 windows is a major disappointment.

Output: [['os general', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Operating a non touch screen on this system is a royal pain!

Output: [['os usability', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: It came with no instruction book - no back up CD's and has already crashed.

Output: [['laptop miscellaneous', 'negative'], ['laptop operation_performance', 'negative'], ['laptop quality', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Hands down one of my best and most used purchases thus far.

Output: [['laptop general', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: The Mid-2014 MacBook Pro does no disappoint...

Output: [['laptop general', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Retina screen, solid build quality, weight, fast processor and the reliability of the Apple brand.

Output: [['display quality', 'positive'], ['laptop quality', 'positive'], ['laptop design_features', 'positive'], ['cpu operation_performance', 'positive'], ['company general', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Cons:Honestly zero con's ... as a Windows PC user the switch over was seamlessly,  I run Parallel when I need Windows.

Output: [['laptop general', 'positive'], ['laptop usability', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: All my devices work flawlessly.

Output: [['laptop usability', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: I'm an amature, so this does more than I can handle.

Output: [['laptop general', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: I'm perfectly satisfied, just have to get use to the new 6.1 system I can't see a problem.

Output: [['laptop general', 'positive'], ['os usability', 'neutral']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: I' doi9ng fine now, and happy as a bug.

Output: [['laptop general', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: The price is great and it does everything I want to do,  Thanks.

Output: [['laptop price', 'positive'], ['laptop general', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: It's perfect!

Output: [['laptop general', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: It's great for what he uses it for.

Output: [['laptop miscellaneous', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: I am really not happy with this computer...

Output: [['laptop general', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: I don't like WINDOWS 8 but that is no fault of the computer but the keyboard is so hard to get the keys to work and the space bar.

Output: [['os general', 'negative'], ['keyboard usability', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Would not buy it again.

Output: [['laptop general', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Meh...but cheap.

Output: [['laptop general', 'neutral'], ['laptop price', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: The first thing I can say for positive is that the laptop is very light- makes it really portable..this with a relatively clear screen is a bonus.

Output: [['laptop design_features', 'positive'], ['laptop portability', 'positive'], ['display quality', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Now the graphics are not HD...and the reason that it is light is that it is really basic (medium low grade) plastic.

Output: [['graphics quality', 'negative'], ['laptop design_features', 'neutral'], ['laptop quality', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: So if you don't have kids, or not in high school or don't accidently sit on it, it should be fine.

Output: [['laptop quality', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Now the speed is disappointing.

Output: [['laptop operation_performance', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Start up is fine  maybe 20 secs at most, but then to get pages to load on internet is molasses at times.

Output: [['laptop operation_performance', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Even for a 4GB RAM it barely chugs with 3 tabs open.

Output: [['laptop operation_performance', 'negative'], ['memory design_features', 'neutral']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: All in all I wish I had waited a bit.

Output: [['laptop general', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: This laptop is amazing!

Output: [['laptop general', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Windows 8.1 has its pros and cons.

Output: [['os general', 'neutral']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: The keyboard is backlit but you have to press the F5 key to turn it on.

Output: [['keyboard design_features', 'positive'], ['keyboard usability', 'neutral']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: I was nervous at first that I purchased a lemon but the user manual explains how to turn on the keyboard  backlight.

Output: [['laptop miscellaneous', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Of course this will decrease your battery life.

Output: [['laptop miscellaneous', 'neutral']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: The sound is very nice and crisp.

Output: [['multimedia_devices quality', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Also, I have no regrets about going with the 8GB RAM because its super fast.

Output: [['memory design_features', 'positive'], ['laptop operation_performance', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: I'm still exploring the various features but overall I am satisfied with my purchase.

Output: [['laptop design_features', 'neutral'], ['laptop general', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: The HP Envy 15 has been everything I expected.

Output: [['laptop general', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: After doing much research for a laptop that had all the features I was looking for, This one hit all the criteria I had.

Output: [['laptop design_features', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: The laptop is very responsice with the Core i7 processor and 8GB of RAM and the sound out of the Beats audio is great.

Output: [['laptop operation_performance', 'positive'], ['cpu operation_performance', 'positive'], ['memory design_features', 'positive'], ['software quality', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: I would highly recommend this product to anyone looking for a top performing laptop.

Output: [['laptop operation_performance', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: used 6 times black screen returned for refund

Output: [['display operation_performance', 'negative'], ['laptop general', 'negative'], ['laptop quality', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: do not use the facial recognition

Output: [['software general', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Windows 8 is not supported by a lot of things!

Output: [['os usability', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: The Dell is quick enough, sturdy, not good with finger prints.

Output: [['laptop operation_performance', 'positive'], ['laptop quality', 'positive'], ['laptop quality', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: It does what it advertises.

Output: [['laptop general', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Price is great, wish it didn't have Windows 8, but that is an opinion.

Output: [['laptop price', 'positive'], ['os general', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: I would recommend it, for anybody needing a reliable simple laptop.

Output: [['laptop quality', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: I bought this for my daughter to use for school and homework, it's not a "fast" computer, but it's great for what she needs it for and very light weight!

Output: [['laptop operation_performance', 'negative'], ['laptop design_features', 'positive'], ['laptop miscellaneous', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Love the price too!

Output: [['laptop price', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]