A hallway may lead to stairs.Logical formLearned from5 sentences. Stairs can be a wood.Logical formLearned from5 sentences. Persons may find some stairs.Logical formLearned from5 sentences. A male may bound_down stairs.Logical formLearned from5 sentences. A suitcase can be at a top of stairs.Logical formLearned from5 sentences. A person may take stairs to a car.Logical formLearned from5 sentences. A person may descend a stair.Logical formLearned from5 sentences. Stairs can be tight.Logical formLearned from5 sentences. A mom may come_up stairs.Logical formLearned from5 sentences. A male may walk_up stairs to a room.Logical formLearned from5 sentences. A male can be at stairs.Logical formLearned from5 sentences. Some flights of stairs can be everyday.Logical formLearned from5 sentences. A female may get_up stairs.Logical formLearned from5 sentences. A female may float_down stairs.Logical formLearned from5 sentences. (Oak stairs) can be broad.Logical formLearned from5 sentences.