A (stair case) can be narrow.Logical formLearned from5 sentences. Stairs can be slippery.Logical formLearned from5 sentences. A photo may show stairs.Logical formLearned from5 sentences. Stairs can be at work.Logical formLearned from5 sentences. Stairs can be awkward.Logical formLearned from5 sentences. A male can be on a stair.Logical formLearned from5 sentences. Steps may pertain-to a stair.Logical formLearned from5 sentences. A male may pour gasoline on stairs.Logical formLearned from5 sentences. Stairs can be distinctive.Logical formLearned from5 sentences. Stairs may climb.Logical formLearned from5 sentences. Stairs may pertain-to a mosque.Logical formLearned from5 sentences. A set can be constituted-of-or-filled-with (steel stairs).Logical formLearned from5 sentences. Some flights can be constituted-of-or-filled-with (steel stairs).Logical formLearned from5 sentences. A figure can be on stairs.Logical formLearned from5 sentences. Stairs can be musty.Logical formLearned from5 sentences.