Question: who played two face in batman dark knight
[{'answer': 'Aaron Eckhart', 'provenance': [{'wikipedia_id': '477701', 'title': 'Two-Face', 'start_paragraph_id': 3, 'start_character': 429, 'end_paragraph_id': 3, 'end_character': 442, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '477701', 'title': 'Two-Face', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 615, 'bleu_score': 0.8367664312895561, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3385934950089190816}, 'section': 'Section::::Abstract.'}]}]