question: university president:professor
choices.label: A B C D
choices.text: screenwriter:poet Lake Superior:Yellowstone Lake mayor:municipal government police:firefighter
explanation: some "university presidents" are "professors", and some "professors" are "university presidents". a "screenwriter" can be a "poet", and a "poet" can also be a "screenwriter". "Lake Superior" and "Yellowstone Lake" are both lakes. the "mayor" works for the "municipal government". "police" and "firefighters" are both occupations.
relation: Lake Superior Yellowstone Lake R2.4
relation: mayor municipal government R3.10
relation: police firefighter R2.4