A total can be constituted-of-or-filled-with some stairs.Logical formLearned from9 sentences. Stairs may be located.Logical formLearned from9 sentences. A female may pertain-to stairs.Logical formLearned from9 sentences. Stairs may be built.Logical formLearned from9 sentences. A (stair case) can be grand.Logical formLearned from9 sentences. Stairs can be indoor.Logical formLearned from9 sentences. A head may pertain-to a stair.Logical formLearned from9 sentences. Stairs can be at an (elevator lobby).Logical formLearned from9 sentences. Stairs may turn.Logical formLearned from9 sentences. A male may trudge_up stairs.Logical formLearned from9 sentences. Trouble can be with stairs.Logical formLearned from9 sentences. A female may come_down stairs.Logical formLearned from9 sentences. A female may skip_down stairs.Logical formLearned from9 sentences. Stairs may lead_up to a second floor.Logical formLearned from9 sentences. A male may follow_up a female stairs.Logical formLearned from9 sentences.