Actors may operate.Logical formLearned from12 sentences. A person may operate a blog.Logical formLearned from12 sentences. (Radio stations) may operate.Logical formLearned from12 sentences. A male may operate for years.Logical formLearned from12 sentences. Arrangements may operate.Logical formLearned from12 sentences. A male may operate on a person.Logical formLearned from12 sentences. Persons may operate as a team.Logical formLearned from12 sentences. A person may operate in an area.Logical formLearned from12 sentences. Some troops may operate under a command.Logical formLearned from12 sentences. Terrorists may operate in areas.Logical formLearned from12 sentences. A chain may operate stores.Logical formLearned from12 sentences. A company may operate a bank.Logical formLearned from12 sentences. Casinos may operate.Logical formLearned from12 sentences. Subsystems may operate within a (bipolar field).Logical formLearned from12 sentences. Facilities may be operated by a company.Logical formLearned from12 sentences.