Question: how many episodes in series 7 of game of thrones
[{'answer': 'seven', 'provenance': [{'wikipedia_id': '47398513', 'title': 'Game of Thrones (season 7)', 'start_paragraph_id': 1, 'start_character': 4, 'end_paragraph_id': 1, 'end_character': 9, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '47398513', 'title': 'Game of Thrones (season 7)', 'start_paragraph_id': 1, 'start_character': 4, 'end_paragraph_id': 1, 'end_character': 581, 'bleu_score': 0.8514318705932531, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1740789637234499430}, 'section': 'Section::::Abstract.'}]}]