747-400s can be in a fleet.Logical formLearned from4 sentences. Persons may reduce a size of a fleet.Logical formLearned from4 sentences. Persons may increase a fleet.Logical formLearned from4 sentences. (Air fleets) may pertain-to a country.Logical formLearned from4 sentences. A fleet can be as a precaution.Logical formLearned from4 sentences. A fleet of boats may be dubbed.Logical formLearned from4 sentences. A fleet of boats may patrol a day.Logical formLearned from4 sentences. A country may rely on a fleet of mi-171s.Logical formLearned from4 sentences. An a310 may join a (carrier fleet).Logical formLearned from4 sentences. An (operating fleet) can be effective.Logical formLearned from4 sentences. A step may lead to an (operating fleet).Logical formLearned from4 sentences. A fleet may include some 777s.Logical formLearned from4 sentences. Some a340-300s can be in a fleet.Logical formLearned from4 sentences. A (fleet modernization) may pertain-to a military-or-other-action-organization.Logical formLearned from4 sentences. Sales can be to corporate fleets.Logical formLearned from4 sentences.