Neurons may pertain-to a central nervous system.Logical formLearned from21 sentences. Diseases may pertain-to a nervous system.Logical formLearned from21 sentences. Studies may pertain-to a nervous system.Logical formLearned from21 sentences. A shudder can be nervous.Logical formLearned from21 sentences. A debility can be nervous.Logical formLearned from21 sentences. A weakness can be nervous.Logical formLearned from21 sentences. A fashion can be nervous.Logical formLearned from21 sentences. Authorities can be nervous.Logical formLearned from21 sentences. White persons can be nervous.Logical formLearned from21 sentences. A nervous system can be immature.Logical formLearned from21 sentences. A conversation can be nervous.Logical formLearned from21 sentences. Part may pertain-to an autonomic nervous system.Logical formLearned from21 sentences. A person can be nervous about flying.Logical formLearned from21 sentences. Families can be nervous.Logical formLearned from21 sentences. Pets can be nervous.Logical formLearned from21 sentences.