Question: who led the upper canada rebellion of 1837
[{'answer': 'William W. Baldwin', 'provenance': [{'wikipedia_id': '248342', 'title': 'Upper Canada Rebellion', 'start_paragraph_id': 10, 'start_character': 137, 'end_paragraph_id': 10, 'end_character': 155, 'bleu_score': 1.0, 'section': 'Section::::Reform movement and rebellion organization.:Political unions.\n'}]}, {'provenance': [{'wikipedia_id': '248342', 'title': 'Upper Canada Rebellion', 'start_paragraph_id': 10, 'start_character': 0, 'end_paragraph_id': 10, 'end_character': 636, 'bleu_score': 0.979896933041101, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5722319246074279508}, 'section': 'Section::::Reform movement and rebellion organization.:Political unions.\n'}]}]