A (fishing boat) may operate.Logical formLearned from12 sentences. Businesses may operate in a country.Logical formLearned from12 sentences. Peacekeepers may operate.Logical formLearned from12 sentences. An aircraft may operate a (passenger flight).Logical formLearned from12 sentences. A system may operate for some years.Logical formLearned from12 sentences. A body may operate.Logical formLearned from12 sentences. A (post office) may operate.Logical formLearned from12 sentences. Some locomotives may operate.Logical formLearned from12 sentences. (Elementary school) may be operated by a (school system).Logical formLearned from12 sentences. A male may operate behind scenes.Logical formLearned from12 sentences. A company may operate some divisions.Logical formLearned from12 sentences. A district may operate some high schools.Logical formLearned from12 sentences. A structure may operate.Logical formLearned from12 sentences. A male may operate under a name.Logical formLearned from12 sentences. Some trains may be operated by a bank.Logical formLearned from12 sentences.