question: house:windows
choices.label: A B C D
choices.text: car:tires kitchen:toilet animal:tiger shoes:socks
explanation: the "windows" are part of the "house". "tires" are part of "car". "kitchen" and "toilet" are rooms with different functions, and "toilet" is not part of "kitchen". the "tiger" is a kind of "animal", but the "tiger" is not part of "animal". both "shoes" and "socks" are items worn by humans, but "socks" are not part of "shoes".
relation: house windows R2.3
relation: car tires R2.3
relation: kitchen toilet R2.4
relation: animal tiger R2.2
relation: shoes socks R2.4