Question: who plays william wallace's wife in braveheart
[{'answer': 'Catherine McCormack', 'provenance': [{'wikipedia_id': '4560', 'title': 'Braveheart', 'start_paragraph_id': 1, 'start_character': 355, 'end_paragraph_id': 1, 'end_character': 374, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]