Question: why is hershel keeping walkers in the barn
[{'answer': 'and can be cured', 'provenance': [{'wikipedia_id': '33752967', 'title': 'Secrets (The Walking Dead)', 'start_paragraph_id': 5, 'start_character': 483, 'end_paragraph_id': 5, 'end_character': 499, 'bleu_score': 1.0, 'section': 'Section::::Plot.\n'}]}, {'answer': 'Hershel believes they are still people'}, {'provenance': [{'wikipedia_id': '33752967', 'title': 'Secrets (The Walking Dead)', 'start_paragraph_id': 5, 'start_character': 0, 'end_paragraph_id': 5, 'end_character': 701, 'bleu_score': 0.9829771687435411, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10652339858986394765}, 'section': 'Section::::Plot.\n'}]}]