Question: who was the mc on this is your life
[{'answer': 'Ralph Edwards', 'provenance': [{'wikipedia_id': '426377', 'title': 'This Is Your Life', 'start_paragraph_id': 1, 'start_character': 197, 'end_paragraph_id': 1, 'end_character': 210, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '426377', 'title': 'This Is Your Life', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 565, 'bleu_score': 0.9427836745142131, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12224233688663405193}, 'section': 'Section::::Abstract.'}]}]