Question: back to the future biff's gang actors
[{'answer': 'Billy Zane', 'provenance': [{'wikipedia_id': '5299314', 'title': 'List of Back to the Future characters', 'start_paragraph_id': 76, 'start_character': 20, 'end_paragraph_id': 76, 'end_character': 30, 'bleu_score': 1.0, 'section': 'Section::::Other characters.:Match, Skinhead, and 3-D.\n'}]}, {'answer': 'Jeffrey Jay Cohen', 'provenance': [{'wikipedia_id': '5299314', 'title': 'List of Back to the Future characters', 'start_paragraph_id': 76, 'start_character': 56, 'end_paragraph_id': 76, 'end_character': 73, 'bleu_score': 1.0, 'section': 'Section::::Other characters.:Match, Skinhead, and 3-D.\n'}]}, {'answer': 'Casey Siemaszko', 'provenance': [{'wikipedia_id': '5299314', 'title': 'List of Back to the Future characters', 'start_paragraph_id': 76, 'start_character': 98, 'end_paragraph_id': 76, 'end_character': 113, 'bleu_score': 1.0, 'section': 'Section::::Other characters.:Match, Skinhead, and 3-D.\n'}]}, {'provenance': [{'wikipedia_id': '5299314', 'title': 'List of Back to the Future characters', 'start_paragraph_id': 76, 'start_character': 0, 'end_paragraph_id': 76, 'end_character': 468, 'bleu_score': 0.9346183847893801, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12091841990641511056}, 'section': 'Section::::Other characters.:Match, Skinhead, and 3-D.\n'}]}]