Question: who plays gates wife in line of duty
[{'answer': 'Kate Ashfield', 'provenance': [{'wikipedia_id': '36257033', 'title': 'Line of Duty', 'start_paragraph_id': 32, 'start_character': 12, 'end_paragraph_id': 32, 'end_character': 25, 'bleu_score': 1.0, 'section': 'Section::::Supporting cast.:Series 1.\n'}]}]