Question: king arthur legend of the sword who was the mage
[{'answer': 'Àstrid Bergès - Frisbey', 'provenance': [{'wikipedia_id': '43679538', 'title': 'King Arthur: Legend of the Sword', 'start_paragraph_id': 38, 'start_character': 164, 'end_paragraph_id': 38, 'end_character': 192, 'bleu_score': 1.0, 'section': 'Section::::Production.:Casting.\n'}]}, {'provenance': [{'wikipedia_id': '43679538', 'title': 'King Arthur: Legend of the Sword', 'start_paragraph_id': 13, 'start_character': 0, 'end_paragraph_id': 13, 'end_character': 112, 'bleu_score': 0.8852140475440831, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1879596915757746142}, 'section': 'Section::::Cast.\n'}]}]