Stairs may go_up in a sort of tunnel to a first-floor.Logical formLearned from1 sentences. Some feet may run_up stairs from a door.Logical formLearned from1 sentences. Some dominoes may make for stairs.Logical formLearned from1 sentences. Steps can be on a stair.Logical formLearned from1 sentences. A female may accompany a male to a step of stairs.Logical formLearned from1 sentences. A female may hear some steps on stairs.Logical formLearned from1 sentences. A lady can be upon stairs.Logical formLearned from1 sentences. Stairs can be under a pretence.Logical formLearned from1 sentences. Stairs may go_down to bed.Logical formLearned from1 sentences. A male may find a male on stairs.Logical formLearned from1 sentences. A noise may be heard on stairs.Logical formLearned from1 sentences. Stairs can be to a library.Logical formLearned from1 sentences. A foot may pertain-to (study stairs).Logical formLearned from1 sentences. Stairs may chatter.Logical formLearned from1 sentences. A male may run_down stairs to breakfast.Logical formLearned from1 sentences.