Question: Rotting in Vain was featured on a Korn album that, according to Brian Welch, is heavier than anyone's heard them in a long time, and was released when?
{'answer': 'October 21, 2016', 'supporting_facts': [['Rotting in Vain', 0], ['Rotting in Vain', 1], ['The Serenity of Suffering', 0], ['The Serenity of Suffering', 1]]}