Question: who did the mavericks play in the finals
[{'answer': 'Miami Heat', 'provenance': [{'wikipedia_id': '28064090', 'title': '2011 NBA Finals', 'start_paragraph_id': 1, 'start_character': 214, 'end_paragraph_id': 1, 'end_character': 224, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '28064090', 'title': '2011 NBA Finals', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 577, 'bleu_score': 0.8991474054867741, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4597818561002026335}, 'section': 'Section::::Abstract.'}]}]