question: singer:sing:song
choices.label: A B C D
choices.text: chef:cook:food student:study:exam lawyer:court:case cleaner:mop:garbage
explanation: "singers" can "sing" "songs". "chefs" can "cook" "food". "students" can "study". "study" and "exam" have no obvious logical relationship. a "court" is where a "lawyer" works. a "mop" is a working tool for a "cleaner".
relation: singer sing song R4.1
relation: chef cook food R4.1
relation: student study R4.1
relation: lawyer court R3.6
relation: mop cleaner R3.10