Question: when was the last time the womens hockey team won gold
[{'answer': '2018'}, {'provenance': [{'wikipedia_id': '1690430', 'title': "United States women's national ice hockey team", 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 166, 'bleu_score': 0.528459783350406, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6250678639446052487}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '45267439', 'title': "United States women's national gymnastics team", 'section': 'Section::::History.:World Championships.\n', 'start_paragraph_id': 9, 'end_paragraph_id': 9, 'meta': {'evidence_span': ['The United States won team gold in 2003, 2007, 2011, 2014, 2015, and 2018.', 'The United States won team gold in 2003, 2007, 2011, 2014, 2015, and 2018.']}}]}]