Stairs may be held.Logical formLearned from2 sentences. Stairs can be in bare feet.Logical formLearned from2 sentences. A male may sneak_up stairs.Logical formLearned from2 sentences. A stair can be precipitous.Logical formLearned from2 sentences. Children may run stairs.Logical formLearned from2 sentences. (Spiral stairs) may pertain-to a person.Logical formLearned from2 sentences. A stair may pertain-to a basement.Logical formLearned from2 sentences. Stairs may lead to an attic.Logical formLearned from2 sentences. Stairs may lead to seats.Logical formLearned from2 sentences. Persons may hear footsteps on stairs.Logical formLearned from2 sentences. Doors can be to stairs.Logical formLearned from2 sentences. Stairs may pertain-to a barn.Logical formLearned from2 sentences. Stairs may pertain-to a shelter.Logical formLearned from2 sentences. Someone may climb stairs.Logical formLearned from2 sentences. Stairs may lead to a deck.Logical formLearned from2 sentences.