A statistical test can be valid.Logical formLearned from3 sentences. Results may be considered valid.Logical formLearned from3 sentences. A (professional license) can be valid.Logical formLearned from3 sentences. (Instance documents) can be valid.Logical formLearned from3 sentences. Some texts can be valid.Logical formLearned from3 sentences. A (feature structure) can be valid.Logical formLearned from3 sentences. Trials can be valid.Logical formLearned from3 sentences. An id-card can be valid.Logical formLearned from3 sentences. Moral reasons can be valid.Logical formLearned from3 sentences. Co-relations can be valid for some subjects.Logical formLearned from3 sentences. Works can be valid.Logical formLearned from3 sentences. Grades can be valid.Logical formLearned from3 sentences. Some same-sex marriages may remain valid.Logical formLearned from3 sentences. Objections to a story can be valid.Logical formLearned from3 sentences. A partnership can be valid.Logical formLearned from3 sentences.