Question: who played cathy in the bbc mini series of wuthering heights
[{'answer': 'Charlotte Riley', 'provenance': [{'wikipedia_id': '20722922', 'title': 'Wuthering Heights (2009 TV serial)', 'start_paragraph_id': 1, 'start_character': 245, 'end_paragraph_id': 1, 'end_character': 260, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '20722922', 'title': 'Wuthering Heights (2009 TV serial)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 339, 'bleu_score': 0.935076192554366, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 638815835637813839}, 'section': 'Section::::Abstract.'}]}]