Question: who played the mother in the horse whisperer
[{'answer': 'Kristin Scott Thomas', 'provenance': [{'wikipedia_id': '698969', 'title': 'The Horse Whisperer (film)', 'start_paragraph_id': 4, 'start_character': 221, 'end_paragraph_id': 4, 'end_character': 241, 'bleu_score': 1.0, 'section': 'Section::::Plot.\n'}]}]