Question: who was the double agent in tinker tailor soldier spy
[{'answer': 'Haydon', 'provenance': [{'wikipedia_id': '31330546', 'title': 'Tinker Tailor Soldier Spy (film)', 'start_paragraph_id': 5, 'start_character': 416, 'end_paragraph_id': 5, 'end_character': 422, 'bleu_score': 1.0, 'section': 'Section::::Plot.\n'}]}, {'provenance': [{'wikipedia_id': '31330546', 'title': 'Tinker Tailor Soldier Spy (film)', 'start_paragraph_id': 8, 'start_character': 0, 'end_paragraph_id': 8, 'end_character': 992, 'bleu_score': 0.8257807232275851, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13413569884820217207}, 'section': 'Section::::Plot.\n'}]}]