Stairs may be placed.Logical formLearned from3 sentences. A female may be left by stairs.Logical formLearned from3 sentences. A person may think about taking stairs.Logical formLearned from3 sentences. A grandfather may come_up stairs.Logical formLearned from3 sentences. Stairs can be from a first floor.Logical formLearned from3 sentences. A (stair climb) may pertain-to a male.Logical formLearned from3 sentences. A (stair climb) can be infamous.Logical formLearned from3 sentences. (Cellar stairs) may pertain-to a person.Logical formLearned from3 sentences. A president may fall_down some stairs.Logical formLearned from3 sentences. A person may walk_up stairs.Logical formLearned from3 sentences. A fragrance may come from stairs.Logical formLearned from3 sentences. Stairs can be at an office.Logical formLearned from3 sentences. An (oil cloth) may curl_up stairs.Logical formLearned from3 sentences. A woman may walk_down stairs.Logical formLearned from3 sentences. Some persons may come_down stairs.Logical formLearned from3 sentences.