question: man:beard
choices.label: A B C D
choices.text: object:mass car:lights mother:kind dark cloud:thunderstorm
explanation: "beard" is part of a "man". the physical property of an "object" is its "mass", and "mass" is not part of an "object". the "lights" are part of the "car". "kind" and "mother" belong to a modifier-modified relation. both "dark clouds" and "thunderstorms" are natural phenomena, and "thunderstorms" are not part of "dark clouds".
relation: beard man R2.3
relation: mass object R3.1
relation: lights car R2.3
relation: kind mother R4.3
relation: thunderstorm dark cloud R2.4