A (balloon flight) can be manned.Logical formLearned from41 sentences. A bottom may pertain-to a balloon.Logical formLearned from40 sentences. Balloons can be colourful.Logical formLearned from39 sentences. A balloon may catch a (jet stream).Logical formLearned from39 sentences. A balloon may float.Logical formLearned from39 sentences. A balloon may deflate.Logical formLearned from38 sentences. A balloon may be refused.Logical formLearned from38 sentences. A balloon may pop.Logical formLearned from37 sentences. A balloon may expand.Logical formLearned from36 sentences. A surface may pertain-to a balloon.Logical formLearned from36 sentences. A (control center) may pertain-to a balloon.Logical formLearned from36 sentences. Balloons may be released.Logical formLearned from35 sentences. Thousands can be constituted-of-or-filled-with red balloons.Logical formLearned from35 sentences. A balloon may inflate.Logical formLearned from35 sentences. Balloons can be unmanned.Logical formLearned from35 sentences.