question: happy:sad
choices.label: A B C D
choices.text: oasis:desert red side:blue side open:optimistic white jade:jade
explanation: "happy" is the opposite of "sad". "oasis" is the opposite of "desert". the "red side" and the "blue side" are two different groups, and the "red side" and the "blue side" are both groups. the opposite of "open" is closed, the opposite of "optimistic" is pessimism, and there is no obvious logical relationship between the two. "white jade" is a kind of "jade", and "white jade" is not the opposite of "jade".
relation: happy sad R1.2
relation: oasis desert R1.2
relation: red side blue side R2.4
relation: white jade jade R2.2