Question: who played the role of gemini ganeshan in mahanati
[{'answer': 'Dulquer Salmaan', 'provenance': [{'wikipedia_id': '54881228', 'title': 'Mahanati', 'start_paragraph_id': 1, 'start_character': 366, 'end_paragraph_id': 1, 'end_character': 381, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]