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:2021-03-22, Stock:COST, The news for the past five days is as follows:
2021-03-15: NEWS1: Why Costco may still win long after the pandemic ends.NEWS2: Why Costco may actually still win long after the pandemic ends.NEWS3: Oracle, Costco, FedEx, NIKE and JPMorgan are part of Zacks Earnings Preview.
2021-03-16: NEWS1: Why Toys R Us is rising from the ashes.NEWS2: Consumers have 'substantial ammunition' to spend: analyst.NEWS3: 1 Thing Costco Does Better Than Anyone Else.NEWS4: 3 Stocks That Turned $20,000 Into More Than $135,000.NEWS5: 3 Stocks That Pass the Warren Buffett "Tides" Test.
2021-03-17: NEWS1: Why this former Sears-owned apparel retailer has seen its stock explode nearly 700%.NEWS2: 4 Retail-Discount Stores to Fend Off Industry Headwinds.NEWS3: Is Costco Stock a Buy?.NEWS4: 5 Brand-Name Stocks With 12-Year Winning Streaks.
2021-03-18: nan
2021-03-19: NEWS1: 3 Stocks to Help You Build Retirement Wealth.

Answer: Rise