Question: who is bigg boss tamil winner season 2
[{'answer': 'Riythvika', 'provenance': [{'wikipedia_id': '57655848', 'title': 'Bigg Boss Tamil 2', 'start_paragraph_id': 4, 'start_character': 73, 'end_paragraph_id': 4, 'end_character': 82, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '57655848', 'title': 'Bigg Boss Tamil 2', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 194, 'bleu_score': 0.67222114185841, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15338498355823994853}, 'section': 'Section::::Abstract.'}]}]