A direction may pertain-to a stair.Logical formLearned from4 sentences. A door can be at a bottom of stairs.Logical formLearned from4 sentences. A bedroom can be at a top of stairs.Logical formLearned from4 sentences. A male may walk_down some flights of stairs.Logical formLearned from4 sentences. A descent may be made by stairs.Logical formLearned from4 sentences. A parlor can be above stairs.Logical formLearned from4 sentences. Feet may rattle_up stairs.Logical formLearned from4 sentences. Stairs can be handsome.Logical formLearned from4 sentences. Stairs can be underground.Logical formLearned from4 sentences. A stair can be short.Logical formLearned from4 sentences. Kitchens of flats may open_on to stairs.Logical formLearned from4 sentences. (Stone stairs) can be cold.Logical formLearned from4 sentences. A flight can be constituted-of-or-filled-with (cement stairs).Logical formLearned from4 sentences. A male may snuck_down stairs.Logical formLearned from4 sentences. A sight may pertain-to stairs.Logical formLearned from4 sentences.