Question: when does game of thrones season 7 start
[{'answer': 'July 16 , 2017', 'provenance': [{'wikipedia_id': '47398513', 'title': 'Game of Thrones (season 7)', 'start_paragraph_id': 77, 'start_character': 146, 'end_paragraph_id': 77, 'end_character': 160, 'bleu_score': 1.0, 'section': 'Section::::Release.:Marketing.\n'}]}, {'provenance': [{'wikipedia_id': '47398513', 'title': 'Game of Thrones (season 7)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 581, 'bleu_score': 0.8734770164117681, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3574527466342376013}, 'section': 'Section::::Abstract.'}]}]