Question: who has won the 2017 womens singles wimbledon tennis tournament
[{'answer': 'Garbiñe Muguruza', 'provenance': [{'wikipedia_id': '54270725', 'title': "2017 Wimbledon Championships – Women's Singles", 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 16, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]