Question: who were the major figures in the reformation
[{'answer': 'Martin Luther', 'provenance': [{'wikipedia_id': '37857', 'title': 'Reformation', 'start_paragraph_id': 1, 'start_character': 386, 'end_paragraph_id': 1, 'end_character': 399, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'John Calvin', 'provenance': [{'wikipedia_id': '37857', 'title': 'Reformation', 'start_paragraph_id': 8, 'start_character': 426, 'end_paragraph_id': 8, 'end_character': 437, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Huldrych Zwingli', 'provenance': [{'wikipedia_id': '37857', 'title': 'Reformation', 'start_paragraph_id': 20, 'start_character': 87, 'end_paragraph_id': 20, 'end_character': 103, 'bleu_score': 1.0, 'section': 'Section::::Origins and early history.:Magisterial Reformation.\n'}]}]