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:2020-06-15, Stock:COST, The news for the past five days is as follows:
2020-06-08: NEWS1: iRobot stock fueled by stay-at-home orders despite tough quarter for vacuum maker.
2020-06-09: NEWS1: 1972+1974=2020.NEWS2: 20 Best Stocks to Invest In During This Recession.NEWS3: Zoom Deals Put Barbarians at the Virtual Gate.
2020-06-10: NEWS1: This Top Dividend Stock Is Better Than It Looks.NEWS2: WFRBS Commercial Mortgage Trust 2011-C3 -- Moody's affirms five and downgrades three classes of WFRBS 2011-C3.
2020-06-11: NEWS1: Instacart valued at nearly $14 bln in latest funding amid online sales boom.NEWS2: How Safe Is Costco and Its Dividend?.
2020-06-12: NEWS1: Best Buy Stock Is Still a Buy With or Without Coronavirus Tailwinds.

Answer: Decrease