Governments may prove that something-is-the-case.Logical formLearned from6 sentences. An attack may prove disastrous.Logical formLearned from6 sentences. A version may prove that something-is-the-case.Logical formLearned from6 sentences. Attempts may prove a failure.Logical formLearned from6 sentences. A guide may prove useful.Logical formLearned from6 sentences. Information may prove invaluable.Logical formLearned from6 sentences. A person may prove him-or-herself a man.Logical formLearned from6 sentences. A general counsel may meet a burden of proving that something-is-the-case.Logical formLearned from6 sentences. Bargaining may prove unsuccessful.Logical formLearned from6 sentences. Numbers may prove a person.Logical formLearned from6 sentences. A transplant may prove successful.Logical formLearned from6 sentences. A contractor may prove that something-is-the-case.Logical formLearned from6 sentences. Persons may prove an identity.Logical formLearned from6 sentences. A tool may prove helpful.Logical formLearned from6 sentences. Factors may prove that something-is-the-case.Logical formLearned from6 sentences.