Question: who won the tour de france in 1973
[{'answer': 'Luis Ocaña', 'provenance': [{'wikipedia_id': '3677755', 'title': '1973 Tour de France', 'start_paragraph_id': 1, 'start_character': 422, 'end_paragraph_id': 1, 'end_character': 432, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '3677755', 'title': '1973 Tour de France', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 498, 'bleu_score': 0.923638366410759, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9612861648102201316}, 'section': 'Section::::Abstract.'}]}]