A female may trot_down stairs.Logical formLearned from3 sentences. Stairs can be an exercise.Logical formLearned from3 sentences. A female may kick_off heels by stairs.Logical formLearned from3 sentences. A door can be to stairs.Logical formLearned from3 sentences. Girls may be line_uped on stairs.Logical formLearned from3 sentences. A male may hear clatter to a top of stairs.Logical formLearned from3 sentences. A person may climb (project stairs) on basis.Logical formLearned from3 sentences. Stairs may pertain-to a club.Logical formLearned from3 sentences. Resistance can be on stairs.Logical formLearned from3 sentences. A person may watch from stairs.Logical formLearned from3 sentences. Persons may head_up stairs.Logical formLearned from3 sentences. Stairs can be fragile.Logical formLearned from3 sentences. Some minutes can be on a stair.Logical formLearned from3 sentences. A child may fall_down stairs.Logical formLearned from3 sentences. A female may thunder_up stairs.Logical formLearned from3 sentences.