Question: who is the oldest golfer to win a pga tournament
[{'answer': 'Sam Snead', 'provenance': [{'wikipedia_id': '1449426', 'title': 'List of golfers with most PGA Tour wins', 'start_paragraph_id': 1, 'start_character': 150, 'end_paragraph_id': 1, 'end_character': 159, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1449426', 'title': 'List of golfers with most PGA Tour wins', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 936, 'bleu_score': 0.974585799855568, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11809057488905581427}, 'section': 'Section::::Abstract.'}]}]