A female may crawl_down stairs.Logical formLearned from3 sentences. A mind can be over a stair.Logical formLearned from3 sentences. A female may drag_up herself stairs.Logical formLearned from3 sentences. A person may run_up stairs to a house.Logical formLearned from3 sentences. A step can be toward stairs.Logical formLearned from3 sentences. A person may hear stairs.Logical formLearned from3 sentences. A person may deal with stairs.Logical formLearned from3 sentences. A (stair case) can be open.Logical formLearned from3 sentences. A person may walk by stairs.Logical formLearned from3 sentences. Stairs can be to a (dining room).Logical formLearned from3 sentences. Stairs can be curvy.Logical formLearned from3 sentences. A person may climb_up stairs to a room.Logical formLearned from3 sentences. A male may tipto_up stairs.Logical formLearned from3 sentences. A person may arrive at a foot of stairs.Logical formLearned from3 sentences. A stair can be privy.Logical formLearned from3 sentences.