Question: when were the olympic games held in china
[{'answer': '2008', 'provenance': [{'wikipedia_id': '77745', 'title': '2008 Summer Olympics', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 4, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '77745', 'title': '2008 Summer Olympics', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 507, 'bleu_score': 0.609099048581031, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13772396622532108080}, 'section': 'Section::::Abstract.'}]}]