A person may walk_up stairs.Logical formLearned from244 sentences. A person may take stairs.Logical formLearned from240 sentences. Some sets can be constituted-of-or-filled-with stairs.Logical formLearned from226 sentences. A base may pertain-to stairs.Logical formLearned from211 sentences. A head may pertain-to stairs.Logical formLearned from208 sentences. A person may walk_down stairs.Logical formLearned from176 sentences. A male may walk_up stairs.Logical formLearned from171 sentences. Stairs may pertain-to a female.Logical formLearned from159 sentences. Some flight can be constituted-of-or-filled-with stairs.Logical formLearned from156 sentences. A female may climb stairs.Logical formLearned from150 sentences. A person may run_up stairs.Logical formLearned from145 sentences. A male may descend stairs.Logical formLearned from144 sentences. Persons can be under stairs.Logical formLearned from143 sentences. Stairs can be rickety.Logical formLearned from142 sentences. A female may fall_down stairs.Logical formLearned from141 sentences.