A person may understand economics.Logical formLearned from21 sentences. Some (library staff) may understand.Logical formLearned from21 sentences. A military-or-other-action-organization may understand that something-is-the-case.Logical formLearned from21 sentences. A church may understand that something-is-the-case.Logical formLearned from21 sentences. A male may understand details.Logical formLearned from21 sentences. Persons may understand a picture.Logical formLearned from21 sentences. Journalists may understand.Logical formLearned from21 sentences. Persons may understand technology.Logical formLearned from21 sentences. Persons may understand concepts.Logical formLearned from21 sentences. A department may understand.Logical formLearned from21 sentences. Students may understand a process.Logical formLearned from21 sentences. A person may understand elements.Logical formLearned from21 sentences. Faculty may understand that something-is-the-case.Logical formLearned from21 sentences. Changes may be understood.Logical formLearned from21 sentences. Some governments may understand that something-is-the-case.Logical formLearned from21 sentences.