Question: who is known as father of karnataka music
[{'answer': 'Purandara Dāsa', 'provenance': [{'wikipedia_id': '510331', 'title': 'Purandara Dasa', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 14, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '510331', 'title': 'Purandara Dasa', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 782, 'bleu_score': 0.81168476562905, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9202819852545836714}, 'section': 'Section::::Abstract.'}]}]