An argument can be valid.Logical formLearned from86 sentences. A statement can be valid.Logical formLearned from86 sentences. Alternatives can be valid.Logical formLearned from86 sentences. A status can be valid.Logical formLearned from85 sentences. Messages can be valid.Logical formLearned from85 sentences. A set can be valid.Logical formLearned from85 sentences. (E-mail addresses) can be valid.Logical formLearned from85 sentences. Passports can be valid.Logical formLearned from85 sentences. Orders can be valid.Logical formLearned from85 sentences. A complaint can be valid.Logical formLearned from85 sentences. A coupon can be valid.Logical formLearned from84 sentences. A candidate can be valid.Logical formLearned from84 sentences. A number can be valid.Logical formLearned from83 sentences. Tests can be valid.Logical formLearned from82 sentences. A measurement can be valid.Logical formLearned from82 sentences.