A tool may operate.Logical formLearned from8 sentences. Some months may operate.Logical formLearned from8 sentences. Some separate (school systems) may operate in a US-city.Logical formLearned from8 sentences. Analysts may operate.Logical formLearned from8 sentences. Users may operate a device.Logical formLearned from8 sentences. (Cancer surgeons) may operate.Logical formLearned from8 sentences. (Extremist cells) may operate in groups.Logical formLearned from8 sentences. Organizations may operate environments.Logical formLearned from8 sentences. A (hospital division) may operate some acute care.Logical formLearned from8 sentences. A partnership may operate a (reduction facility).Logical formLearned from8 sentences. Some nuclear plants may operate in a country.Logical formLearned from8 sentences. A us-state may operate a fleet with a (passenger trip length) of some miles.Logical formLearned from8 sentences. A carrier may operate from a country.Logical formLearned from8 sentences. A molecule may operate oncogene.Logical formLearned from8 sentences. A (holding company) may operate through a subsidiary.Logical formLearned from8 sentences.