Question: who is ellaria sand on game of thrones
[{'answer': 'Indira Varma', 'provenance': [{'wikipedia_id': '1888752', 'title': 'Ellaria Sand', 'start_paragraph_id': 3, 'start_character': 30, 'end_paragraph_id': 3, 'end_character': 42, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]