Question: who won the women's singles gold medal in tennis at the rio olympics
[{'answer': 'Monica Puig', 'provenance': [{'wikipedia_id': '49937429', 'title': "Tennis at the 2016 Summer Olympics – Women's Singles", 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 11, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '49937429', 'title': "Tennis at the 2016 Summer Olympics – Women's Singles", 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 112, 'bleu_score': 0.5886994264160941, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 558772774747388439}, 'section': 'Section::::Abstract.'}]}]