Question: who is the current drummer for led zeppelin
[{'answer': 'Jason John Bonham', 'provenance': [{'wikipedia_id': '312567', 'title': 'Jason Bonham', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 17, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '312567', 'title': 'Jason Bonham', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 335, 'bleu_score': 0.8004057372761251, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8399736129275265802}, 'section': 'Section::::Abstract.'}]}]