Question: how many tamils are there in sri lanka
[{'answer': '2,270,924', 'provenance': [{'wikipedia_id': '4096004', 'title': 'Sri Lankan Tamils', 'start_paragraph_id': 24, 'start_character': 40, 'end_paragraph_id': 24, 'end_character': 49, 'bleu_score': 1.0, 'section': 'Section::::Society.:Demographics.\n'}]}]