Question: who played darth vader in return of jedi
[{'answer': 'Shaw', 'provenance': [{'wikipedia_id': '398165', 'title': 'Sebastian Shaw (actor)', 'start_paragraph_id': 0, 'start_character': 10, 'end_paragraph_id': 0, 'end_character': 14, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '398165', 'title': 'Sebastian Shaw (actor)', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 624, 'bleu_score': 0.9804854598160591, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6785238569843529757}, 'section': 'Section::::Abstract.'}]}]