Question: this person was a long-standing leader of the dravidian movement
[{'answer': 'Muthuvel Karunanidhi', 'provenance': [{'wikipedia_id': '479912', 'title': 'M. Karunanidhi', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 20, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '479912', 'title': 'M. Karunanidhi', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 638, 'bleu_score': 0.8081296342809831, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5799395438963197948}, 'section': 'Section::::Abstract.'}]}]