(Use permits) can be experimental.Logical formLearned from7 sentences. A permit may pertain-to a collector.Logical formLearned from7 sentences. Permits can be invalid.Logical formLearned from7 sentences. (Take permits) may undergo an issuance.Logical formLearned from7 sentences. A permit can be for some months.Logical formLearned from7 sentences. (Parking permits) can be for students.Logical formLearned from7 sentences. Visitors may obtain a permit.Logical formLearned from7 sentences. Permit may expire.Logical formLearned from7 sentences. A person may receive a permit.Logical formLearned from7 sentences. Options may trade permits.Logical formLearned from7 sentences. Regard can be to permits.Logical formLearned from7 sentences. A law may require a permit.Logical formLearned from7 sentences. A (permit system) can be in place.Logical formLearned from7 sentences. A (scheduling permit) can be electronic.Logical formLearned from7 sentences. A permit can be for dumping.Logical formLearned from7 sentences.