A male may approach a male on stairs.Logical formLearned from1 sentences. A pair may pass_down stairs.Logical formLearned from1 sentences. A male may bound_up stairs some steps.Logical formLearned from1 sentences. A male may land at a foot of stairs.Logical formLearned from1 sentences. A major may meet a pair on stairs.Logical formLearned from1 sentences. Travelling-clothes may descend stairs.Logical formLearned from1 sentences. Stairs can be between bridesmaids.Logical formLearned from1 sentences. A female may call over stairs.Logical formLearned from1 sentences. (Stone stairs) can be into a lobby.Logical formLearned from1 sentences. A male may hear a footstep on stairs.Logical formLearned from1 sentences. Stairs can be opposite to a window.Logical formLearned from1 sentences. Stairs can be yards.Logical formLearned from1 sentences. Crying can be on stairs.Logical formLearned from1 sentences. A petty officer may be stationed on stairs.Logical formLearned from1 sentences. Girls may be tripped on stairs.Logical formLearned from1 sentences.