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:2020-12-23, Stock:COST, The news for the past five days is as follows:
2020-12-16: NEWS1: These major retailers are spending millions of dollars to show employees appreciation.NEWS2: Costco (COST) Poised to Tap Rising Demand Amid COVID-19.NEWS3: Where Will Costco Be in 5 Years?.NEWS4: 10 Best Large-Cap Stocks To Buy According to Ray Dalio.
2020-12-17: nan
2020-12-18: nan
2020-12-21: NEWS1: Better Buy: Costco vs. Unilever.NEWS2: 4 Discount Retailers Set to Maintain Winning Streak in 2021.
2020-12-22: NEWS1: Three Retailers Set for Sales Growth Regardless of Vaccine Timing.NEWS2: Better Buy: Costco vs. Best Buy.NEWS3: Bottlenecks Wear Down World Economy’s Fleet of Container Ships.

Answer: Decrease