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:2021-08-17, Stock:COST, The news for the past five days is as follows:
2021-08-10: NEWS1: Costco's Incredible Sales Momentum Continued in July.NEWS2: 2 Retail Stocks You Can Buy and Hold for the Next Decade.
2021-08-11: NEWS1: Costco (COST) Outpaces Stock Market Gains: What You Should Know.NEWS2: Costco (COST) Thrives on Stellar Comps & E-Commerce Sales.
2021-08-12: nan
2021-08-13: NEWS1: 3 No-Brainer Stocks to Consider if You're Worried About Inflation.
2021-08-16: nan

Answer: Decrease