Stairs may lead to patios.Logical formLearned from5 sentences. A devil may pertain-to stairs.Logical formLearned from5 sentences. Stairs can be to a door.Logical formLearned from5 sentences. A person may climb stairs to a second floor.Logical formLearned from5 sentences. A wall may pertain-to stairs.Logical formLearned from5 sentences. Stairs may go_up to some bedrooms.Logical formLearned from5 sentences. Stairs can be nice.Logical formLearned from5 sentences. A carpet may pertain-to stairs.Logical formLearned from5 sentences. Parts may pertain-to stairs.Logical formLearned from5 sentences. A male may use stairs.Logical formLearned from5 sentences. Attic stairs can be for storage.Logical formLearned from5 sentences. Kittens can be under stairs.Logical formLearned from5 sentences. Stairs can be in an (apartment building).Logical formLearned from5 sentences. Some flights can be constituted-of-or-filled-with (spiral stairs).Logical formLearned from5 sentences. A person may head_down stairs.Logical formLearned from5 sentences.