question: guide dogs:detection dogs
choices.label: A B C D
choices.text: police dog:military dog cow:cattle fightingcock:broiler racing horse:shaft-horse
explanation: in terms of species, "guide dogs" and "detection dogs" overlap, and both can help humans in terms of their functions. both "police dogs" and "military dogs" belong to dogs in terms of breed, and both can help people when it comes to their functions. "cows" and "cattle" belong to cattle. "fightingcocks" and "broilers" are both chickens. in terms of breeds, "racing horses" and "shaft-horses" belong to horses, and in terms of functions, they both can help people.
relation: guide dogs detection dogs R2.6