Question: where were the summer olympics held in 2016
[{'answer': 'Rio de Janeiro , Brazil', 'provenance': [{'wikipedia_id': '961522', 'title': '2016 Summer Olympics', 'start_paragraph_id': 18, 'start_character': 100, 'end_paragraph_id': 18, 'end_character': 123, 'bleu_score': 1.0, 'section': 'Section::::Development and preparation.:Venues and infrastructure.:Olympic park.\n'}]}, {'provenance': [{'wikipedia_id': '961522', 'title': '2016 Summer Olympics', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 346, 'bleu_score': 0.5996988123322461, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11573899569882531386}, 'section': 'Section::::Abstract.'}]}]