Question: who plays the director on ncis los angeles
[{'answer': 'Rocky Carroll', 'provenance': [{'wikipedia_id': '22137180', 'title': 'List of NCIS: Los Angeles characters', 'start_paragraph_id': 52, 'start_character': 218, 'end_paragraph_id': 52, 'end_character': 231, 'bleu_score': 1.0, 'section': 'Section::::Main characters.:Eric Beale.\n'}]}, {'provenance': [{'wikipedia_id': '22137180', 'title': 'List of NCIS: Los Angeles characters', 'start_paragraph_id': 114, 'start_character': 0, 'end_paragraph_id': 114, 'end_character': 349, 'bleu_score': 0.8937168577929461, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2452960952727667412}, 'section': 'Section::::Recurring characters.:Leon Vance.\n'}]}]