Aerial observation may show that something-is-the-case.Logical formLearned from2 sentences. Aerial observation can be by a military-or-other-action-organization.Logical formLearned from2 sentences. A male may undertake an aerial survey of areas.Logical formLearned from2 sentences. A (spy mission) can be aerial.Logical formLearned from2 sentences. An aerial vehicle can be on reconnoissance.Logical formLearned from2 sentences. An aerial vehicle may be shoot_downed by (fighter aircraft) of a military-or-other-action-organization.Logical formLearned from2 sentences. Areas can be aerial.Logical formLearned from2 sentences. A country may step_up aerial reconnaissance.Logical formLearned from2 sentences. A vehicle may be used for aerial reconnaissance.Logical formLearned from2 sentences. An aerial bombardment may be degraded.Logical formLearned from2 sentences. A (battlefield reconnaissance) can be aerial.Logical formLearned from2 sentences. Aerial photography may help.Logical formLearned from2 sentences. A (transport center) can be aerial.Logical formLearned from2 sentences. Firings can be aerial.Logical formLearned from2 sentences. An engine can be aerial.Logical formLearned from2 sentences.