Based on the news about the stock in the past five trading days, please predict the rise or fall of the stock in the next trading day. If the stock is predicted to rise in the next trading day, please output [Rise], if the stock is predicted to fall in the next trading day, please output [Decrease].

Date:2018-11-21, Stock:BRK-A, The news for the past five days is as follows:
2018-11-14: nan
2018-11-15: NEWS1: Is Apple Stock Still a Buy?.NEWS2: Is Apple Stock Still a Buy?.
2018-11-16: NEWS1: Whitney Tilson On Value, Reinvention, And The Hedge Fund Business (Podcast).NEWS2: Whitney Tilson On Value, Reinvention, And The Hedge Fund Business (Podcast).
2018-11-19: NEWS1: Berkshire Hathaway Bought Financial Stocks in Q3.NEWS2: Berkshire Hathaway Bought Financial Stocks in Q3.NEWS3: AAPL Stock Has Recovered From Slowing iPhone Sales Before.NEWS4: AAPL Stock Has Recovered From Slowing iPhone Sales Before.
2018-11-20: NEWS1: Is Citigroup Stock Too Cheap To Ignore?.NEWS2: Is Citigroup Stock Too Cheap To Ignore?.

Answer: Rise