Question: who played mr freeze in the batman tv series
[{'answer': 'Michael Ansara', 'provenance': [{'wikipedia_id': '18588727', 'title': 'Mr. Freeze', 'start_paragraph_id': 2, 'start_character': 363, 'end_paragraph_id': 2, 'end_character': 377, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '18588727', 'title': 'Mr. Freeze', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 479, 'bleu_score': 0.6750889065447161, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15100963185809645404}, 'section': 'Section::::Abstract.'}]}]