Question: who did batman fight in marvel vs dc
[{'answer': 'Captain America', 'provenance': [{'wikipedia_id': '2152196', 'title': 'DC vs. Marvel', 'start_paragraph_id': 19, 'start_character': 146, 'end_paragraph_id': 19, 'end_character': 161, 'bleu_score': 1.0, 'section': 'Section::::Plot.\n'}]}, {'provenance': [{'wikipedia_id': '2152196', 'title': 'DC vs. Marvel', 'start_paragraph_id': 16, 'start_character': 0, 'end_paragraph_id': 16, 'end_character': 358, 'bleu_score': 0.9657992495762461, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11232030003020131535}, 'section': 'Section::::Plot.\n'}]}]