Question: who played elizabeth of york in the white queen
[{'answer': 'Rebecca Ferguson', 'provenance': [{'wikipedia_id': '37619511', 'title': 'The White Queen (miniseries)', 'start_paragraph_id': 45, 'start_character': 257, 'end_paragraph_id': 45, 'end_character': 273, 'bleu_score': 1.0, 'section': 'Section::::Cast.:Supporting.\n'}]}, {'provenance': [{'wikipedia_id': '37619511', 'title': 'The White Queen (miniseries)', 'start_paragraph_id': 15, 'start_character': 0, 'end_paragraph_id': 15, 'end_character': 95, 'bleu_score': 0.850733133512352, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 864974913559035653}, 'section': 'Section::::Cast.:Main.\n'}]}]