Question: name some components of the central nervous system (cns)
[{'answer': 'brain', 'provenance': [{'wikipedia_id': '7251', 'title': 'Central nervous system', 'start_paragraph_id': 1, 'start_character': 85, 'end_paragraph_id': 1, 'end_character': 90, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'spinal cord', 'provenance': [{'wikipedia_id': '7251', 'title': 'Central nervous system', 'start_paragraph_id': 1, 'start_character': 95, 'end_paragraph_id': 1, 'end_character': 106, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '7251', 'title': 'Central nervous system', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 806, 'bleu_score': 0.588414017221171, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15996744441598493212}, 'section': 'Section::::Abstract.'}]}]