Question: who plays the female russian president on madam secretary
[{'answer': 'Angela Gots', 'provenance': [{'wikipedia_id': '42740374', 'title': 'Madam Secretary (TV series)', 'start_paragraph_id': 40, 'start_character': 12, 'end_paragraph_id': 40, 'end_character': 23, 'bleu_score': 1.0, 'section': 'Section::::Cast and characters.:Recurring.\n'}]}]