A concept can be alien.Logical formLearned from16 sentences. An interference can be alien.Logical formLearned from16 sentences. A boyfriend can be alien.Logical formLearned from16 sentences. Maggots can be alien.Logical formLearned from16 sentences. Skills can be alien.Logical formLearned from16 sentences. A spirit can be alien.Logical formLearned from16 sentences. A horde can be alien.Logical formLearned from16 sentences. Foes can be alien.Logical formLearned from16 sentences. A crisis can be alien.Logical formLearned from16 sentences. A jet can be alien.Logical formLearned from16 sentences. Viruses can be alien.Logical formLearned from16 sentences. Kids can be alien.Logical formLearned from16 sentences. Ownership can be alien.Logical formLearned from16 sentences. A turf can be alien.Logical formLearned from16 sentences. Citizens can be alien.Logical formLearned from16 sentences.