Stairs may lead to a beach.Logical formLearned from3 sentences. Persons may walk to stairs.Logical formLearned from3 sentences. A male may emerge from stairs.Logical formLearned from3 sentences. Persons may stand at a top of stairs.Logical formLearned from3 sentences. A female may look_over at stairs.Logical formLearned from3 sentences. A multitude can be constituted-of-or-filled-with stairs.Logical formLearned from3 sentences. Persons may go_down some flights of stairs.Logical formLearned from3 sentences. Persons may fall_down stairs.Logical formLearned from3 sentences. A male may look at a top of stairs.Logical formLearned from3 sentences. Stairs can be solid.Logical formLearned from3 sentences. (Metal stairs) may climb_up to a bridge.Logical formLearned from3 sentences. A male may come_down a flight of stairs.Logical formLearned from3 sentences. A female may clomp_up stairs.Logical formLearned from3 sentences. A person may wander_up stairs.Logical formLearned from3 sentences. Stairs may squeak.Logical formLearned from3 sentences.