A company may operate a mine.Logical formLearned from8 sentences. A female may operate a machine.Logical formLearned from8 sentences. (Railroad signals) may operate off (telephone networks).Logical formLearned from8 sentences. Some sides may operate.Logical formLearned from8 sentences. An administration may operate on a basis.Logical formLearned from8 sentences. Pilots may operate.Logical formLearned from8 sentences. A factory may operate some days.Logical formLearned from8 sentences. A company may operate chains.Logical formLearned from8 sentences. Persons may operate in good faith.Logical formLearned from8 sentences. Brokers may operate.Logical formLearned from8 sentences. An airline may operate a hub.Logical formLearned from8 sentences. A network may operate in some countries.Logical formLearned from8 sentences. (Insurance companies) may operate in a state.Logical formLearned from8 sentences. Trucks may operate in a country.Logical formLearned from8 sentences. A person may operate for a part.Logical formLearned from8 sentences.