An (authorization code) can be valid.Logical formLearned from3 sentences. A (contact lens prescription) can be valid.Logical formLearned from3 sentences. A product can be valid.Logical formLearned from3 sentences. A living will can be valid.Logical formLearned from3 sentences. An assignee can be valid.Logical formLearned from3 sentences. Learning can be valid.Logical formLearned from3 sentences. An (admission ticket) can be valid.Logical formLearned from3 sentences. A session may be considered valid.Logical formLearned from3 sentences. Metaphors can be valid.Logical formLearned from3 sentences. Some (admission tickets) can be valid.Logical formLearned from3 sentences. Winners can be valid.Logical formLearned from3 sentences. An (installation path) can be valid.Logical formLearned from3 sentences. A (background image url) can be valid.Logical formLearned from3 sentences. An (anti virus) can be valid.Logical formLearned from3 sentences. An offer can be valid to shopping online.Logical formLearned from3 sentences.