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:2020-10-30, Stock:COST, The news for the past five days is as follows:
2020-10-23: NEWS1: Costco Selling Coronavirus Test Kits Online.NEWS2: Costco (COST) Thrives on Stellar Comps Show & E-Commerce.
2020-10-26: NEWS1: Walmart CEO: Coronavirus pandemic taught me courage and speed.NEWS2: Walmart CEO: 'The country needs to come together and solve problems'.NEWS3: Walmart CEO: The lack of stimulus is taking its toll.NEWS4: Best Buy CEO Corie Barry: The COVID-19 pandemic has made me a better leader.NEWS5: Best Buy CEO Corie Barry: We are doing everything to avoid Black Friday crowds.NEWS6: What Does Amazon Mean for Costco Stock?.
2020-10-27: NEWS1: Tata Motors' stock surges after revenue falls less than expected, Jaguar Land Rover turns a profit.NEWS2: Tata Motors' stock surges after revenue falls less than expected, Jaguar Land Rover turns a profit.
2020-10-28: nan
2020-10-29: NEWS1: Costco (COST) Stock Sinks As Market Gains: What You Should Know.NEWS2: 3 Stocks Immune to the Coronavirus.

Answer: Decrease