Question: how many riders per team in the tour de france 2018
[{'answer': '8', 'provenance': [{'wikipedia_id': '53438215', 'title': '2018 Tour de France', 'start_paragraph_id': 0, 'start_character': 3, 'end_paragraph_id': 0, 'end_character': 4, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '53438215', 'title': '2018 Tour de France', 'start_paragraph_id': 6, 'start_character': 0, 'end_paragraph_id': 6, 'end_character': 754, 'bleu_score': 0.812850535082644, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3959492723712948156}, 'section': 'Section::::Teams.\n'}]}]