Stairs can be at a male.Logical formLearned from4 sentences. Stairs may lead_up to a level.Logical formLearned from4 sentences. A male may lead a female to stairs.Logical formLearned from4 sentences. A person may approach stairs.Logical formLearned from4 sentences. Some women may race_up stairs.Logical formLearned from4 sentences. A flight can be constituted-of-or-filled-with narrow stairs.Logical formLearned from4 sentences. Stairs can be yellow.Logical formLearned from4 sentences. (Beach stairs) may pertain-to a hotel.Logical formLearned from4 sentences. A person may go_down stair.Logical formLearned from4 sentences. A person may pause at a bottom of stairs.Logical formLearned from4 sentences. A male may fall from stairs.Logical formLearned from4 sentences. A box can be under stairs.Logical formLearned from4 sentences. A male may get_down stairs.Logical formLearned from4 sentences. A male may saunter_up stairs.Logical formLearned from4 sentences. A male may collapse on stairs.Logical formLearned from4 sentences.