Question: who is winner of womens world cup 2017
[{'answer': 'United States', 'provenance': [{'wikipedia_id': '244862', 'title': "FIFA Women's World Cup", 'start_paragraph_id': 2, 'start_character': 87, 'end_paragraph_id': 2, 'end_character': 100, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]