A female may creep_down stairs.Logical formLearned from5 sentences. Stairs can be illuminated.Logical formLearned from5 sentences. Dogs may appreciate (dog stairs).Logical formLearned from5 sentences. A male may climb stairs to a plane.Logical formLearned from5 sentences. Stairs may play cars.Logical formLearned from5 sentences. Kids may sit on stairs.Logical formLearned from5 sentences. A female may shout_up stairs.Logical formLearned from5 sentences. Stairs may lead to a male.Logical formLearned from5 sentences. A person may get stairs.Logical formLearned from5 sentences. A male may turn_up a flight of stairs.Logical formLearned from5 sentences. A female may appear at stairs.Logical formLearned from5 sentences. A male may come stairs.Logical formLearned from5 sentences. A case can be constituted-of-or-filled-with stairs.Logical formLearned from5 sentences. Some minutes can be on a (stair master).Logical formLearned from5 sentences. Persons may walk_up some stairs.Logical formLearned from5 sentences.