Stairs can be with a ramp.Logical formLearned from2 sentences. A flight of stairs may sour weeks of planning.Logical formLearned from2 sentences. A female may greet a person from a top of stairs.Logical formLearned from2 sentences. Persons may opt for stairs.Logical formLearned from2 sentences. A person may descend stairs to a level.Logical formLearned from2 sentences. A female may continue_up stairs.Logical formLearned from2 sentences. A person may climb (stone stairs).Logical formLearned from2 sentences. A front may pertain-to stairs.Logical formLearned from2 sentences. A term may include stairs.Logical formLearned from2 sentences. Multi-levels may be connected by stairs.Logical formLearned from2 sentences. A stair may undergo a demolition.Logical formLearned from2 sentences. A stair can be to a level.Logical formLearned from2 sentences. Persons may fall_down stairs.Logical formLearned from2 sentences. A newel may pertain-to a stair.Logical formLearned from2 sentences. (Mahogany balusters) may pertain-to stairs.Logical formLearned from2 sentences.