Question: who was the drummer for carlos santana at woodstock
[{'answer': 'Michael Shrieve', 'provenance': [{'wikipedia_id': '1307950', 'title': 'Michael Shrieve', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 15, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1307950', 'title': 'Michael Shrieve', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 377, 'bleu_score': 0.806500198748607, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15067362255485050614}, 'section': 'Section::::Abstract.'}]}]