Question: who was the host of whats my line
[{'answer': 'John Daly', 'provenance': [{'wikipedia_id': '494189', 'title': "What's My Line?", 'start_paragraph_id': 6, 'start_character': 81, 'end_paragraph_id': 6, 'end_character': 90, 'bleu_score': 1.0, 'section': 'Section::::Original CBS series, 1950 to 1967.\n'}]}, {'answer': 'Wally Bruner', 'provenance': [{'wikipedia_id': '494189', 'title': "What's My Line?", 'start_paragraph_id': 2, 'start_character': 113, 'end_paragraph_id': 2, 'end_character': 125, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Larry Blyden', 'provenance': [{'wikipedia_id': '494189', 'title': "What's My Line?", 'start_paragraph_id': 2, 'start_character': 139, 'end_paragraph_id': 2, 'end_character': 151, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]