A (security apparatus) may operate.Logical formLearned from7 sentences. Persons may operate with a concept of a homeland.Logical formLearned from7 sentences. A cell may operate on soil.Logical formLearned from7 sentences. Some trains may operate between a US-city.Logical formLearned from7 sentences. A force may operate under control.Logical formLearned from7 sentences. Gangs may operate under a guise of separatists.Logical formLearned from7 sentences. Special forces may operate in an area.Logical formLearned from7 sentences. Equipment may operate with software.Logical formLearned from7 sentences. A world-city may operate in a country.Logical formLearned from7 sentences. Islamic groups may operate from a country.Logical formLearned from7 sentences. A factory may operate without a license.Logical formLearned from7 sentences. Boats may be operated by gangs.Logical formLearned from7 sentences. An (aid organization) may operate some offices.Logical formLearned from7 sentences. A company may be operated as a monopoly.Logical formLearned from7 sentences. An university may operate an elementary school.Logical formLearned from7 sentences.