(Deck stairs) may pertain-to persons.Logical formLearned from4 sentences. A wife may fall_down stairs.Logical formLearned from4 sentences. A wall can be at a top of stairs.Logical formLearned from4 sentences. A male may dart_up stairs.Logical formLearned from4 sentences. A female may climb some flights of stairs.Logical formLearned from4 sentences. A male may stop at a top of stairs.Logical formLearned from4 sentences. Some steps can be constituted-of-or-filled-with stairs.Logical formLearned from4 sentences. A person may skip_down stairs to a truck.Logical formLearned from4 sentences. A heap can be at a bottom of stairs.Logical formLearned from4 sentences. Stairs can be to a deck.Logical formLearned from4 sentences. A person may go_down some set of stairs.Logical formLearned from4 sentences. Stairs can be to a loft.Logical formLearned from4 sentences. Stairs may be painted.Logical formLearned from4 sentences. Persons may have stairs.Logical formLearned from4 sentences. A person may climb stairs with a twisted ankle.Logical formLearned from4 sentences.