(Stair climbings) may have implications.Logical formLearned from8 sentences. Footsteps may descend stairs.Logical formLearned from8 sentences. A person may get_up stairs.Logical formLearned from8 sentences. Stairs may kill a person.Logical formLearned from8 sentences. Stairs can be on a floor.Logical formLearned from8 sentences. Access can be to stairs.Logical formLearned from8 sentences. Stairs may be involved.Logical formLearned from8 sentences. A person may go to a top of stairs.Logical formLearned from8 sentences. A (spiral stair) can be narrow.Logical formLearned from8 sentences. An angle may pertain-to stairs.Logical formLearned from8 sentences. A person may climb_up stairs.Logical formLearned from8 sentences. Deck can be with stairs.Logical formLearned from8 sentences. Stairs may start.Logical formLearned from8 sentences. A step can be on a stair.Logical formLearned from8 sentences. Stairs may lead to a first floor.Logical formLearned from8 sentences.