A female may be found at a bottom of a flight of stairs.Logical formLearned from3 sentences. Stairs can be to a platform.Logical formLearned from3 sentences. Stairs can be in a picture.Logical formLearned from3 sentences. An entrance may have stairs.Logical formLearned from3 sentences. A (stair lift) may pertain-to a male.Logical formLearned from3 sentences. A father may fall_down stairs.Logical formLearned from3 sentences. A stair can be constituted-of-or-filled-with some steps.Logical formLearned from3 sentences. Some levels may be connected by stairs.Logical formLearned from3 sentences. A set can be constituted-of-or-filled-with (rock stairs).Logical formLearned from3 sentences. A girl can be on stairs.Logical formLearned from3 sentences. Stairs can be high.Logical formLearned from3 sentences. Stairs can be retractable.Logical formLearned from3 sentences. Stairs may face a person.Logical formLearned from3 sentences. Staff can be aware of stairs.Logical formLearned from3 sentences. Stairs may lead to an auditorium.Logical formLearned from3 sentences.