Exchange can be for some spies.Logical formLearned from10 sentences. A (spy plane) can be in international (air space).Logical formLearned from10 sentences. Spies may undergo killings.Logical formLearned from10 sentences. A head of a (spy agency) may warn that something-is-the-case.Logical formLearned from10 sentences. Information can be from (spy agencies).Logical formLearned from10 sentences. A (spy scandal) may pertain-to a sport.Logical formLearned from10 sentences. A warning can be to spies.Logical formLearned from10 sentences. Visits may drop_off after a collision of a (spy plane).Logical formLearned from10 sentences. Some (spy satellites) may observe activities.Logical formLearned from10 sentences. Some collision can be between a (spy plane).Logical formLearned from10 sentences. Heads may pertain-to a (spy agency).Logical formLearned from10 sentences. A head may pertain-to a (mi6 spy agency).Logical formLearned from10 sentences. A country may put (spy satellites).Logical formLearned from10 sentences. A rocket may carry (spy satellites).Logical formLearned from10 sentences. A (spy plane) may crash.Logical formLearned from10 sentences.