question: flight attendant:pilot
choices.label: A B C D
choices.text: driver:traffic police student:teacher customer:salesperson nurse:doctor
explanation: both "flight attendant" and "pilot" are staff members of the aircraft, and "flight attendant" and "pilot" are the same category. some "drivers" are "traffic police" and some "traffic police" are "drivers". "teachers" are school staff, but "students" are not school staff. a "salesperson" is a store employee, but a "customer" is not a store employee. "nurse" and "doctor" are both hospital staff, and "nurse" and "doctor" are medical staff.
relation: flight attendant pilot R2.4
relation: driver traffic police R2.7
relation: teacher student R3.10
relation: salesperson customer R3.10
relation: nurse doctor R2.4