question: bus:carrying passengers
choices.label: A B C D
choices.text: movie:audience song:opera truck:transport play:music
explanation: the "bus" has the function of "carrying passengers". the "audience" can watch the "movie", and the "movie" is not a tool of the "audience". "song" is an art form that combines lyrics and scores. "opera" is mainly composed of three different art forms: folk song and dance, rap and burlesque. it is also an art form. "song" and "opera" "it's a kind of art form. the "truck" has the function of "transport". "music" will be "played".
relation: bus carrying passengers R3.3
relation: audience movie R4.4
relation: song opera R2.4
relation: truck transport R3.3
relation: music play R4.2