Question: who won the us golf open in 2004
[{'answer': 'Retief Goosen', 'provenance': [{'wikipedia_id': '13931709', 'title': '2004 U.S. Open (golf)', 'start_paragraph_id': 1, 'start_character': 143, 'end_paragraph_id': 1, 'end_character': 156, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '13931709', 'title': '2004 U.S. Open (golf)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 315, 'bleu_score': 0.844360471920343, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12131335927432563436}, 'section': 'Section::::Abstract.'}]}]