A crash can be a fault of officials.Logical formLearned from9 sentences. (Recovery teams) may converge on a (crash site) of a (refueling tanker).Logical formLearned from9 sentences. A (refueling tanker) may undergo a (crash site).Logical formLearned from9 sentences. A (jetliner crash) can be in a US-city.Logical formLearned from9 sentences. A cause of a crash may occur.Logical formLearned from9 sentences. Reasons may pertain-to a crash.Logical formLearned from9 sentences. (Helicopter crashes) may pertain-to an international-political-entity.Logical formLearned from9 sentences. Details of a crash may be knowned.Logical formLearned from9 sentences. A jet may be grounded by a crash.Logical formLearned from9 sentences. A commission may investigate a crash of an airliner.Logical formLearned from9 sentences. Crashes can be in former soviet republics.Logical formLearned from9 sentences. An agency can be in_charge_of crashes.Logical formLearned from9 sentences. A tour may pertain-to a (crash site).Logical formLearned from9 sentences. A (death toll) can be from a (truck crash).Logical formLearned from9 sentences. (Horrible crash) can be at a race.Logical formLearned from9 sentences.