Question: who were the members of the traveling wilburys group
[{'answer': 'Bob Dylan', 'provenance': [{'wikipedia_id': '31206', 'title': 'Traveling Wilburys', 'start_paragraph_id': 1, 'start_character': 111, 'end_paragraph_id': 1, 'end_character': 120, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'George Harrison', 'provenance': [{'wikipedia_id': '31206', 'title': 'Traveling Wilburys', 'start_paragraph_id': 1, 'start_character': 122, 'end_paragraph_id': 1, 'end_character': 137, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Jeff Lynne', 'provenance': [{'wikipedia_id': '31206', 'title': 'Traveling Wilburys', 'start_paragraph_id': 1, 'start_character': 139, 'end_paragraph_id': 1, 'end_character': 149, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Roy Orbison', 'provenance': [{'wikipedia_id': '31206', 'title': 'Traveling Wilburys', 'start_paragraph_id': 1, 'start_character': 151, 'end_paragraph_id': 1, 'end_character': 162, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Tom Petty', 'provenance': [{'wikipedia_id': '31206', 'title': 'Traveling Wilburys', 'start_paragraph_id': 1, 'start_character': 167, 'end_paragraph_id': 1, 'end_character': 176, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '31206', 'title': 'Traveling Wilburys', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['Roy Orbison', 'The Traveling Wilburys (sometimes shortened to the Wilburys) were an EnglishAmerican supergroup consisting of Bob Dylan, George Harrison, Jeff Lynne, Roy Orbison and Tom Petty', 'The Traveling Wilburys (sometimes shortened to the Wilburys) were an EnglishAmerican supergroup consisting of Bob Dylan, George Harrison, Jeff Lynne, Roy Orbison and Tom Petty.']}}]}]