question: forest:tree
choices.label: A B C D
choices.text: bird:eagle mountain range:mountain university:peking university rabbit:carrot
explanation: "trees" are part of the "forest". "eagle" is a kind of "bird", and "bird" is not composed of "eagle". "mountain" is part of "mountain range" "peking university" is a famous "university", and "university" is not composed of "peking university". the food of "rabbit" is "carrot", and "rabbit" is not composed of "carrot".
relation: forest tree R2.3
relation: bird eagle R2.2
relation: mountain range mountain R2.3
relation: university peking university R2.2
relation: rabbit carrot R3.10