Information can be from spies.Logical formLearned from13 sentences. Some (u-2 spy planes) may fly at altitudes.Logical formLearned from13 sentences. Spies can be within an operation.Logical formLearned from13 sentences. A (spy establishment) may pertain-to a country.Logical formLearned from13 sentences. A (spy game) can be interactive.Logical formLearned from13 sentences. Parts of a (spy plane) may leave an airline on a leg of a journey.Logical formLearned from13 sentences. (Spy plane) may be fly_offed.Logical formLearned from13 sentences. Pilot may collide with a (spy plane).Logical formLearned from13 sentences. A (spy plane standoff) can be with a country.Logical formLearned from13 sentences. A (spy plane) can be captive.Logical formLearned from13 sentences. Agents may pose as spies.Logical formLearned from13 sentences. Some workers may be involved in a (spy ring).Logical formLearned from13 sentences. A response can be to spies.Logical formLearned from13 sentences. An assassination may pertain-to a (spy agency).Logical formLearned from13 sentences. A head may pertain-to a (spy ring).Logical formLearned from13 sentences.