(Fleet sales) can be unprofitable.Logical formLearned from12 sentences. Upgrades can be to a fleet.Logical formLearned from12 sentences. The (fuel economy) may pertain-to fleets.Logical formLearned from12 sentences. A fleet may pertain-to a military-commander.Logical formLearned from12 sentences. Fleets can be constituted-of-or-filled-with satellites.Logical formLearned from12 sentences. Fleets may pertain-to airlines.Logical formLearned from12 sentences. A fleet may pertain-to an aircraft.Logical formLearned from12 sentences. A fleet may undergo an aging.Logical formLearned from12 sentences. A person can be (vice admiral) of a fleet.Logical formLearned from12 sentences. A company may operate a (container shipping fleet).Logical formLearned from12 sentences. A (helicopter fleet) may pertain-to a military-or-other-action-organization.Logical formLearned from12 sentences. (Fishing fleets) can be from a country.Logical formLearned from12 sentences. A fleet may pertain-to a division.Logical formLearned from12 sentences. An airline may have a fleet of some planes.Logical formLearned from12 sentences. Fleets can be constituted-of-or-filled-with airplanes.Logical formLearned from12 sentences.