A middle may pertain-to a structure.Logical formLearned from71 sentences. A structure may pertain-to an agency.Logical formLearned from71 sentences. A structure may pertain-to a compound.Logical formLearned from71 sentences. A structure may undergo a restoration.Logical formLearned from71 sentences. An organizational structure can be formal.Logical formLearned from71 sentences. Structures may collapse.Logical formLearned from71 sentences. A model may show a structure.Logical formLearned from71 sentences. Structures can be extended.Logical formLearned from71 sentences. A structure may be considered.Logical formLearned from71 sentences. A structure may pertain-to a brain.Logical formLearned from71 sentences. Structures can be geometrical.Logical formLearned from71 sentences. A structure may be used.Logical formLearned from71 sentences. Structures can be vacant.Logical formLearned from71 sentences. A structure can be spherical.Logical formLearned from71 sentences. A structure may undergo ruins.Logical formLearned from70 sentences.