Stairs can be in an (apartment building).Logical formLearned from6 sentences. Stairs may pertain-to a (subway station).Logical formLearned from6 sentences. A lady can be on stairs.Logical formLearned from6 sentences. A person may pull_down stairs.Logical formLearned from6 sentences. Stairs can be to an apartment.Logical formLearned from6 sentences. Someone may climb stairs.Logical formLearned from6 sentences. Stairs may lead to waters.Logical formLearned from6 sentences. A building can be with stairs.Logical formLearned from6 sentences. Stair may run into schedules.Logical formLearned from6 sentences. Stairs can be well-worn.Logical formLearned from6 sentences. A female may climb stairs of an (apartment building).Logical formLearned from6 sentences. Taps may hit (steel stairs).Logical formLearned from6 sentences. Stairs can be lit.Logical formLearned from6 sentences. Stairs can be creek.Logical formLearned from6 sentences. A person may go_up stairs to an apartment of a childhood.Logical formLearned from6 sentences.