Question: where is the 2017 us open golf championship being played
[{'answer': 'Erin Hills', 'provenance': [{'wikipedia_id': '50875497', 'title': '2017 U.S. Open (golf)', 'start_paragraph_id': 1, 'start_character': 76, 'end_paragraph_id': 1, 'end_character': 86, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]