Question: who played the cobra kai sensei in the karate kid
[{'answer': 'Martin Kove', 'provenance': [{'wikipedia_id': '2176801', 'title': 'Martin Kove', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 11, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '2176801', 'title': 'Martin Kove', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 345, 'bleu_score': 0.790062638719996, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 302650890588271082}, 'section': 'Section::::Abstract.'}]}]