Question: when does the tour de france finish 2018
[{'answer': 'on 29 July', 'provenance': [{'wikipedia_id': '53438215', 'title': '2018 Tour de France', 'start_paragraph_id': 1, 'start_character': 222, 'end_paragraph_id': 1, 'end_character': 232, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]