Faculties may operate.Logical formLearned from6 sentences. Persons may operate in small groups.Logical formLearned from6 sentences. Academic libraries may operate.Logical formLearned from6 sentences. A carrier may operate (motor vehicles).Logical formLearned from6 sentences. Managers may operate.Logical formLearned from6 sentences. A player may operate.Logical formLearned from6 sentences. A (tax system) may operate.Logical formLearned from6 sentences. Businesses may operate in a community.Logical formLearned from6 sentences. A person may operate vehicles.Logical formLearned from6 sentences. Vehicles may be operated for purposes.Logical formLearned from6 sentences. Telescopes may operate at wavelengths.Logical formLearned from6 sentences. Detectors may operate.Logical formLearned from6 sentences. Devices may operate in a (frequency range).Logical formLearned from6 sentences. Some offices may operate.Logical formLearned from6 sentences. Persons may operate in a mode.Logical formLearned from6 sentences.