A search can be for extraterrestrial intelligence.Logical formLearned from320 sentences. A search can be for extraterrestrial life.Logical formLearned from262 sentences. An origin can be extraterrestrial.Logical formLearned from214 sentences. A material can be extraterrestrial.Logical formLearned from124 sentences. A race can be extraterrestrial.Logical formLearned from113 sentences. Materials can be extraterrestrial.Logical formLearned from80 sentences. A contact can be extraterrestrial.Logical formLearned from78 sentences. Species can be extraterrestrial.Logical formLearned from73 sentences. A body can be extraterrestrial.Logical formLearned from63 sentences. Physics can be extraterrestrial.Logical formLearned from62 sentences. An extraterrestrial life can be intelligent.Logical formLearned from61 sentences. (Life forms) can be extraterrestrial.Logical formLearned from54 sentences. Origins can be extraterrestrial.Logical formLearned from54 sentences. Search can be for extraterrestrial intelligence.Logical formLearned from54 sentences. Objects can be extraterrestrial.Logical formLearned from53 sentences.