question: house:wall
choices.label: A B C D
choices.text: velvet antler:antlers white fungus:fungus elephant:ivory tank:weapon
explanation: the "wall" is part of the "house" "antle" includes "velvet antler". "fungus" includes "white fungus". "ivory" is part of "elephant". "weapon" includes "tank".
relation: house wall R2.3
relation: velvet antler antlers R2.2
relation: white fungus fungus R2.2
relation: elephant ivory R2.3
relation: tank weapon R2.2