Question: who played chewbacca in the original star wars
[{'answer': 'Peter Mayhew', 'provenance': [{'wikipedia_id': '999975', 'title': 'Peter Mayhew', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 12, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '999975', 'title': 'Peter Mayhew', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 283, 'bleu_score': 0.7635527692350461, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 927772830485436561}, 'section': 'Section::::Abstract.'}]}]