Question: who shot rick's son in the walking dead
[{'answer': 'Otis', 'provenance': [{'wikipedia_id': '33439352', 'title': 'Bloodletting (The Walking Dead)', 'start_paragraph_id': 5, 'start_character': 63, 'end_paragraph_id': 5, 'end_character': 67, 'bleu_score': 1.0, 'section': 'Section::::Plot.\n'}]}, {'provenance': [{'wikipedia_id': '33439352', 'title': 'Bloodletting (The Walking Dead)', 'start_paragraph_id': 5, 'start_character': 0, 'end_paragraph_id': 5, 'end_character': 541, 'bleu_score': 0.9788329837059241, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14039885794456752805}, 'section': 'Section::::Plot.\n'}]}]