Clinical trials can be in humans.Logical formLearned from74 sentences. Humans can be social animals.Logical formLearned from74 sentences. A vaccine can be for humans.Logical formLearned from73 sentences. Humans may undergo generations.Logical formLearned from73 sentences. (Health problems) can be in humans.Logical formLearned from72 sentences. Billions can be constituted-of-or-filled-with humans.Logical formLearned from72 sentences. Humans may come into contact.Logical formLearned from72 sentences. Humans may be infected.Logical formLearned from71 sentences. A human may die.Logical formLearned from71 sentences. Humans may undergo a creation.Logical formLearned from71 sentences. Humans can be evil.Logical formLearned from71 sentences. Effects can be in humans.Logical formLearned from71 sentences. Interaction can be between humans.Logical formLearned from71 sentences. Testing can be in humans.Logical formLearned from70 sentences. Humans can be on a planet.Logical formLearned from69 sentences.