An appearance may pertain-to a structure.Logical formLearned from42 sentences. Structures can be intact.Logical formLearned from42 sentences. A (data structure) can be efficient.Logical formLearned from42 sentences. (Data structures) can be arbitrary.Logical formLearned from42 sentences. A structure can be fundamental.Logical formLearned from42 sentences. Structures can be decentralized.Logical formLearned from42 sentences. A dam can be a structure.Logical formLearned from42 sentences. Structures can be based.Logical formLearned from42 sentences. A structure can be in question.Logical formLearned from42 sentences. Structures can be submerged.Logical formLearned from41 sentences. A structure may survive.Logical formLearned from41 sentences. Studies may pertain-to a structure.Logical formLearned from41 sentences. A structure may be designed by a male.Logical formLearned from41 sentences. A structure can be polymeric.Logical formLearned from41 sentences. Structures can be equivalent.Logical formLearned from41 sentences.