Question: who played the role of rose in titanic
[{'answer': 'Kate Winslet', 'provenance': [{'wikipedia_id': '52371', 'title': 'Titanic (1997 film)', 'start_paragraph_id': 1, 'start_character': 214, 'end_paragraph_id': 1, 'end_character': 226, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '52371', 'title': 'Titanic (1997 film)', 'start_paragraph_id': 16, 'start_character': 0, 'end_paragraph_id': 16, 'end_character': 1835, 'bleu_score': 0.9507783178005401, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17987349554184584430}, 'section': 'Section::::Cast.:Fictional characters.\n'}]}]