Question: how many books left in game of thrones
[{'answer': 'two', 'provenance': [{'wikipedia_id': '12301', 'title': 'A Song of Ice and Fire', 'start_paragraph_id': 7, 'start_character': 722, 'end_paragraph_id': 7, 'end_character': 725, 'bleu_score': 1.0, 'section': 'Section::::Plot synopsis.\n'}]}, {'provenance': [{'wikipedia_id': '12301', 'title': 'A Song of Ice and Fire', 'start_paragraph_id': 28, 'start_character': 0, 'end_paragraph_id': 28, 'end_character': 552, 'bleu_score': 0.979896933041101, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13234469966959017733}, 'section': 'Section::::Publishing history.:Planned novels and future.\n'}]}]