Question: who won the tour de france in 1999
[{'answer': 'It has no overall winner', 'provenance': [{'wikipedia_id': '2239110', 'title': '1999 Tour de France', 'start_paragraph_id': 1, 'start_character': 126, 'end_paragraph_id': 1, 'end_character': 150, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '2239110', 'title': '1999 Tour de France', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 801, 'bleu_score': 0.948431427741065, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7623003066480027548}, 'section': 'Section::::Abstract.'}]}]