Question: when did game of thrones start on hbo
[{'answer': 'April 17 , 2011', 'provenance': [{'wikipedia_id': '20715044', 'title': 'Game of Thrones', 'start_paragraph_id': 1, 'start_character': 476, 'end_paragraph_id': 1, 'end_character': 491, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '20715044', 'title': 'Game of Thrones', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 527, 'bleu_score': 0.606083919695039, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 455742132220890018}, 'section': 'Section::::Abstract.'}]}]