A structure can be stable.Logical formLearned from401 sentences. A building can be a structure.Logical formLearned from400 sentences. Structures can be geological.Logical formLearned from395 sentences. A structure can be open.Logical formLearned from389 sentences. A structure can be democratic.Logical formLearned from387 sentences. A structure may pertain-to an organization.Logical formLearned from383 sentences. (Data structures) can be complex.Logical formLearned from383 sentences. Structures can be illegal.Logical formLearned from383 sentences. A structure may pertain-to a body.Logical formLearned from374 sentences. A structure may pertain-to data.Logical formLearned from374 sentences. A structure can be in a country.Logical formLearned from372 sentences. A structure may pertain-to a document.Logical formLearned from365 sentences. A structure may pertain-to a protein.Logical formLearned from365 sentences. A structure can be operational.Logical formLearned from364 sentences. A structure can be known.Logical formLearned from364 sentences.