A balloon may pass through prohibited airspace.Logical formLearned from6 sentences. A balloon may enter airspace.Logical formLearned from6 sentences. A balloon may cross into a country.Logical formLearned from6 sentences. A balloon can be errant.Logical formLearned from6 sentences. A balloon can be nonstop.Logical formLearned from6 sentences. A (satellite distress signal) may be received from a balloon.Logical formLearned from6 sentences. An envelope may pertain-to a balloon.Logical formLearned from6 sentences. A balloon may pose a (security risk) to aircraft.Logical formLearned from6 sentences. A balloon may be equipped with parachutes.Logical formLearned from6 sentences. Some balloons may lift a (steel section).Logical formLearned from6 sentences. A balloon may be downed.Logical formLearned from6 sentences. A military may shoot_down a balloon.Logical formLearned from6 sentences. A (military helicopter) may approach a balloon.Logical formLearned from6 sentences. A balloon may be launched.Logical formLearned from6 sentences. Fans may wave be cheered (orange balloons).Logical formLearned from6 sentences.