Question: The thriller film 3 gained high anticipation due to the viral marketing of what song that was written and sung by Dhanush, and composed by Anirudh Ravichander?
{'answer': 'Why This Kolaveri Di', 'supporting_facts': [['3 (2012 Tamil film)', 0], ['3 (2012 Tamil film)', 3], ['Why This Kolaveri Di', 2]]}