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:2020-02-03, Stock:COST, The news for the past five days is as follows:
2020-01-27: NEWS1: Here's Why Dollar General Marching Ahead of the Industry.
2020-01-28: NEWS1: Dollar Tree Hits New 52-Week Low: Will the Downside Continue?.NEWS2: Reynolds Consumer is taking its portfolio of everyday goods public in $1 billion-plus IPO.NEWS3: Buy Sluggish Amazon Stock Ahead of Q4 Earnings on Possible 2020 Surge?.
2020-01-29: nan
2020-01-30: NEWS1: Costco (COST) Stock Sinks As Market Gains: What You Should Know.NEWS2: WFRBS Commercial Mortgage Trust 2011-C3 -- Moody's affirms four and downgrades four classes of WFRBS 2011-C3.
2020-01-31: NEWS1: Suji Park packages a 'gateway' to Korean cuisine.NEWS2: Amazon's grocery deliveries are spiking — here's how grocery stores can compete.NEWS3: Is Costco Wholesale (COST) Outperforming Other Retail-Wholesale Stocks This Year?.NEWS4: Customer-Winning Products: The Core Path to Long-Lasting Prosperity.

Answer: Decrease