sentences: a fruit fly is a kind of fly
docs: olive_fruit_fly is fly. common_fruit_fly is fruit_fly. mediterranean_fruit_fly is fruit_fly. fruit_fly is dipterous_insect. fruit_flies is very_small_flies. drosophila is fruit_fly. vinegar_fly is fruit_fly. bee_fly is fly. female_fly is fly. drosophila_funebris is fruit_fly.