Question: who was the host of america's most wanted
[{'answer': 'John Walsh', 'provenance': [{'wikipedia_id': '347084', 'title': 'Murder of Adam Walsh', 'start_paragraph_id': 1, 'start_character': 5, 'end_paragraph_id': 1, 'end_character': 15, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '347084', 'title': 'Murder of Adam Walsh', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 645, 'bleu_score': 0.8687998474006801, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17922343715164248548}, 'section': 'Section::::Abstract.'}]}]