Question: who hosted the price is right before bob barker
[{'answer': 'Bill Cullen', 'provenance': [{'wikipedia_id': '5909850', 'title': 'The Price Is Right', 'start_paragraph_id': 1, 'start_character': 424, 'end_paragraph_id': 1, 'end_character': 435, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '5909850', 'title': 'The Price Is Right', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 557, 'bleu_score': 0.9606438885644071, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5704961231310498349}, 'section': 'Section::::Abstract.'}]}]