question: glasses:eyes
choices.label: A B C D
choices.text: crutches:legs mask:mouth and nose hat:head watch:wrist
explanation: "glasses" is a tool for correcting eyesight, and has the function of assisting human body to "eyes". "crutches" is a tool that is convenient for walking, and has the function of assisting human body to "legs". "mask" can protect the "mouth and nose", but it does not have the function of assisting the human body. "hat" can protect the "head" and also play a decorative role, but it does not have the function of assisting the human body. "watch" is worn on the "wrist", but does not have the function of assisting the human body.
relation: glasses eyes R2.2