Question: who has won the 2018 tour de france
[{'answer': 'Geraint Thomas', 'provenance': [{'wikipedia_id': '23972988', 'title': 'List of Tour de France general classification winners', 'start_paragraph_id': 12, 'start_character': 562, 'end_paragraph_id': 12, 'end_character': 576, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'provenance': [{'wikipedia_id': '23972988', 'title': 'List of Tour de France general classification winners', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 711, 'bleu_score': 0.7881754341146091, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11397226879769473959}, 'section': 'Section::::Abstract.'}]}]