Question: where was the first world classical tamil conference held
[{'answer': 'Tamil Nadu', 'provenance': [{'wikipedia_id': '24394286', 'title': 'World Tamil Conference', 'start_paragraph_id': 2, 'start_character': 143, 'end_paragraph_id': 2, 'end_character': 153, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '24394286', 'title': 'World Tamil Conference', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 540, 'bleu_score': 0.9766041382465441, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12743912838282470061}, 'section': 'Section::::Abstract.'}]}]