Question: who played sam adams in sons of liberty
[{'answer': 'Ben Barnes', 'provenance': [{'wikipedia_id': '43730972', 'title': 'Sons of Liberty (miniseries)', 'start_paragraph_id': 6, 'start_character': 12, 'end_paragraph_id': 6, 'end_character': 22, 'bleu_score': 1.0, 'section': 'Section::::Cast and characters.\n'}]}, {'provenance': [{'wikipedia_id': '43730972', 'title': 'Sons of Liberty (miniseries)', 'start_paragraph_id': 6, 'start_character': 0, 'end_paragraph_id': 6, 'end_character': 44, 'bleu_score': 0.6803749333171201, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 902787379613432630}, 'section': 'Section::::Cast and characters.\n'}]}]