question: fan:air conditioner
choices.label: A B C D
choices.text: submarine:aircraft carrier raincoat:umbrella rice paper:computer candle:electric light
explanation: "Fan" and "air conditioner" have the same cooling function. In addition, "air conditioner" has heating function. the "submarine" and "aircraft carrier" functions are not the same. "Raincoat" and "umbrella" have the same rain protection function. In addition, the "umbrella" has the sun shading function. "rice paper" and "computer" have different functions. "rice paper" is used for writing, and "computer" is used for typing. a "candle" has the same function as a "electric light" and can be used for lighting, except that the "electric light" has no other function.
relation: fan air conditioner R2.4
relation: raincoat umbrella R2.4
relation: rice paper computer R2.4
relation: candle electric light R2.4