A (data service) may pertain-to a carrier.Logical formLearned from77 sentences. An (air carrier) may pertain-to a nation.Logical formLearned from77 sentences. A national carrier can be troubled.Logical formLearned from77 sentences. Carriers can be known.Logical formLearned from76 sentences. A person may switch carriers.Logical formLearned from76 sentences. (Aircraft carriers) may pertain-to persons.Logical formLearned from76 sentences. A service may pertain-to a carrier.Logical formLearned from76 sentences. A low-cost carrier can be successful.Logical formLearned from75 sentences. Some service may be offered by a carrier.Logical formLearned from75 sentences. A person can be a carrier.Logical formLearned from74 sentences. A carrier can be scheduled.Logical formLearned from73 sentences. A (flag carrier) can be dutch.Logical formLearned from73 sentences. A (flagship carrier) may pertain-to a world-city.Logical formLearned from73 sentences. A (flag carrier) may pertain-to a nation.Logical formLearned from73 sentences. An (expeditionary carrier battle group) may pertain-to a military-or-other-action-organization.Logical formLearned from72 sentences.