Plans may operate.Logical formLearned from23 sentences. An university may operate.Logical formLearned from23 sentences. A conference may operate by consensus.Logical formLearned from23 sentences. (Government agencies) may operate.Logical formLearned from23 sentences. A state may operate a program.Logical formLearned from23 sentences. A driver may operate a vehicle.Logical formLearned from23 sentences. Manufacturers may operate in a country.Logical formLearned from23 sentences. Some (fishing boats) may operate in an area.Logical formLearned from23 sentences. Engines may operate.Logical formLearned from23 sentences. Some chinese companies may operate in a country.Logical formLearned from23 sentences. A cell may operate in a country.Logical formLearned from23 sentences. A military may operate from airfields.Logical formLearned from23 sentences. Leadership may operate.Logical formLearned from23 sentences. (Spy satellites) may be operated by other nations.Logical formLearned from23 sentences. A country may operate some flights.Logical formLearned from23 sentences.