Question: what is g's name in ncis la
[{'answer': 'Grisha Alekandrovich Nikolaev'}, {'provenance': [{'wikipedia_id': '28976713', 'title': 'G. Callen', 'start_paragraph_id': 35, 'start_character': 0, 'end_paragraph_id': 35, 'end_character': 438, 'bleu_score': 0.9062950209722, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14582451418525832343}, 'section': 'Section::::Storylines.:Season 7.\n'}]}]