Question: who were the members of creedence clearwater revival
[{'answer': 'rhythm guitarist Tom Fogerty', 'provenance': [{'wikipedia_id': '145995', 'title': 'Creedence Clearwater Revival', 'start_paragraph_id': 1, 'start_character': 235, 'end_paragraph_id': 1, 'end_character': 263, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'bassist Stu Cook', 'provenance': [{'wikipedia_id': '145995', 'title': 'Creedence Clearwater Revival', 'start_paragraph_id': 1, 'start_character': 265, 'end_paragraph_id': 1, 'end_character': 281, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'drummer Doug Clifford', 'provenance': [{'wikipedia_id': '145995', 'title': 'Creedence Clearwater Revival', 'start_paragraph_id': 1, 'start_character': 287, 'end_paragraph_id': 1, 'end_character': 308, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'lead vocalist , lead guitarist , and primary songwriter John Fogerty'}, {'provenance': [{'wikipedia_id': '145995', 'title': 'Creedence Clearwater Revival', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 849, 'bleu_score': 0.947265548358389, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5702119027690883179}, 'section': 'Section::::Abstract.'}]}]