Question: who is leon trotsky in the animal farm
[{'answer': 'Snowball', 'provenance': [{'wikipedia_id': '729629', 'title': 'Snowball (Animal Farm)', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 8, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '729629', 'title': 'Snowball (Animal Farm)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 323, 'bleu_score': 0.665826805284595, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3743327284292976582}, 'section': 'Section::::Abstract.'}]}]