A country may upgrade some sensors on a fleet.Logical formLearned from16 sentences. Some aircraft can be from a fleet.Logical formLearned from16 sentences. A fleet may pertain-to an island.Logical formLearned from16 sentences. A fleet may undergo an upgrading.Logical formLearned from15 sentences. A quality may pertain-to a fleet.Logical formLearned from15 sentences. An (aircraft fleet) can be civilian.Logical formLearned from15 sentences. A fleet can be large.Logical formLearned from15 sentences. A fleet may include aircrafts.Logical formLearned from15 sentences. A fleet can be under a command of admiral.Logical formLearned from15 sentences. A fleet may undergo a performance.Logical formLearned from15 sentences. A fleet can be constituted-of-or-filled-with some tractors.Logical formLearned from15 sentences. A fleet can be victorious.Logical formLearned from15 sentences. Vessels may pertain-to a fleet.Logical formLearned from15 sentences. Some fleet may be comprised.Logical formLearned from15 sentences. A male may serve with a fleet.Logical formLearned from15 sentences.