Question: who played johnny in gangs of new york
[{'answer': 'Henry Thomas', 'provenance': [{'wikipedia_id': '188902', 'title': 'Gangs of New York', 'start_paragraph_id': 16, 'start_character': 12, 'end_paragraph_id': 16, 'end_character': 24, 'bleu_score': 1.0, 'section': 'Section::::Cast.\n'}]}, {'provenance': [{'wikipedia_id': '188902', 'title': 'Gangs of New York', 'start_paragraph_id': 16, 'start_character': 0, 'end_paragraph_id': 16, 'end_character': 42, 'bleu_score': 0.6147881529512641, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3417043352151770443}, 'section': 'Section::::Cast.\n'}]}]