Stairs may undergo a use.Logical formLearned from31 sentences. Stairs may be creaked.Logical formLearned from31 sentences. A top may pertain-to (basement stairs).Logical formLearned from30 sentences. A male may stand at a top of stairs.Logical formLearned from30 sentences. A female may stand at a top of stairs.Logical formLearned from30 sentences. Stairs can be white.Logical formLearned from29 sentences. The left may pertain-to stairs.Logical formLearned from28 sentences. A person may climb some flights of stairs.Logical formLearned from28 sentences. A female may reach a bottom of stairs.Logical formLearned from28 sentences. A person may fall_down some stairs.Logical formLearned from28 sentences. A person may see stairs.Logical formLearned from28 sentences. A person may fall on stairs.Logical formLearned from28 sentences. Top may pertain-to stairs.Logical formLearned from28 sentences. A person may go stairs.Logical formLearned from28 sentences. Stairs can be to a second floor.Logical formLearned from27 sentences.