Stairs can be steep that something-is-the-case.Logical formLearned from5 sentences. A male may lie at a bottom of stairs.Logical formLearned from5 sentences. A female may climb stairs to an office.Logical formLearned from5 sentences. Stairs may shake.Logical formLearned from5 sentences. A person may build stairs.Logical formLearned from5 sentences. Stairs can be imaginary.Logical formLearned from5 sentences. A sweep can be constituted-of-or-filled-with stairs.Logical formLearned from5 sentences. Dozens can be constituted-of-or-filled-with stairs.Logical formLearned from5 sentences. Persons may start_up (escalator stairs).Logical formLearned from5 sentences. Stairs may throw peanuts.Logical formLearned from5 sentences. Stairs can be with a leg.Logical formLearned from5 sentences. Persons may exit stairs.Logical formLearned from5 sentences. A dog may run to (basement stairs).Logical formLearned from5 sentences. Persons may come_down stairs.Logical formLearned from5 sentences. Stairs can be simple.Logical formLearned from5 sentences.