(Chief executive) may pertain-to a (taxi fleet).Logical formLearned from4 sentences. A backbone may pertain-to a (warplane fleet).Logical formLearned from4 sentences. A backbone may pertain-to an (air fleet).Logical formLearned from4 sentences. A fleet may be deserted.Logical formLearned from4 sentences. A fleet may undergo a running.Logical formLearned from4 sentences. A world-city may have a fleet.Logical formLearned from4 sentences. A fleet may be confiscated.Logical formLearned from4 sentences. A fleet may reach.Logical formLearned from4 sentences. A fleet can be constituted-of-or-filled-with high-speed trains.Logical formLearned from4 sentences. A fleet can be constituted-of-or-filled-with clouds.Logical formLearned from4 sentences. A fleet may undergo a transfer.Logical formLearned from4 sentences. Fleets may pertain-to operators.Logical formLearned from4 sentences. A fleet can be in accordance.Logical formLearned from4 sentences. An airline may grounde a fleet of a380s.Logical formLearned from4 sentences. A country may increase a size of a fleet.Logical formLearned from4 sentences.