A scientific experiment can be valid.Logical formLearned from3 sentences. A (career path) can be valid.Logical formLearned from3 sentences. Leases can be valid.Logical formLearned from3 sentences. Excuses can be valid.Logical formLearned from3 sentences. Perceptions can be valid.Logical formLearned from3 sentences. A bailout can be valid.Logical formLearned from3 sentences. Individuals can be valid.Logical formLearned from3 sentences. An attitude can be valid.Logical formLearned from3 sentences. (Paper ballots) can be valid.Logical formLearned from3 sentences. An (offer sheet) can be valid.Logical formLearned from3 sentences. A (zoning law) can be valid.Logical formLearned from3 sentences. A rights-of-way can be valid.Logical formLearned from3 sentences. Commitments can be valid.Logical formLearned from3 sentences. A bid may remain valid.Logical formLearned from3 sentences. A dialect can be valid.Logical formLearned from3 sentences.