Question: who is considered as the first film actress of sinhala cinema
[{'answer': 'Rukmani Devi', 'provenance': [{'wikipedia_id': '5181858', 'title': 'Cinema of Sri Lanka', 'start_paragraph_id': 23, 'start_character': 816, 'end_paragraph_id': 23, 'end_character': 828, 'bleu_score': 1.0, 'section': 'Section::::History.:Primitive stage (1947–1955).\n'}]}, {'provenance': [{'wikipedia_id': '5181858', 'title': 'Cinema of Sri Lanka', 'start_paragraph_id': 23, 'start_character': 0, 'end_paragraph_id': 23, 'end_character': 949, 'bleu_score': 0.9666817114186481, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10470883926061164274}, 'section': 'Section::::History.:Primitive stage (1947–1955).\n'}]}]