Question: who does mr pilkington symbolize in animal farm
[{'answer': 'Winston Churchill', 'provenance': [{'wikipedia_id': '2788725', 'title': 'Pilkington (Animal Farm)', 'start_paragraph_id': 3, 'start_character': 23, 'end_paragraph_id': 3, 'end_character': 40, 'bleu_score': 1.0, 'section': 'Section::::Role in the story.\n'}]}, {'answer': 'Franklin Delano Roosevelt', 'provenance': [{'wikipedia_id': '2788725', 'title': 'Pilkington (Animal Farm)', 'start_paragraph_id': 3, 'start_character': 45, 'end_paragraph_id': 3, 'end_character': 70, 'bleu_score': 1.0, 'section': 'Section::::Role in the story.\n'}]}, {'provenance': [{'wikipedia_id': '2788725', 'title': 'Pilkington (Animal Farm)', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 2017, 'bleu_score': 0.9938365984107321, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1800116560434019959}, 'section': 'Section::::Role in the story.\n'}]}]