Question: who plays ser barristan in game of thrones
[{'answer': 'Ian McElhinney', 'provenance': [{'wikipedia_id': '32013531', 'title': 'Ian McElhinney', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 14, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '32013531', 'title': 'Ian McElhinney', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 335, 'bleu_score': 0.7846523216816451, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9904448528451305138}, 'section': 'Section::::Abstract.'}]}]