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:2018-02-07, Stock:COST, The news for the past five days is as follows:
2018-01-31: NEWS1: Daily Dividend Report: TMO, ANTM, SPG, COST, MON.NEWS2: Daily Dividend Report: TMO, ANTM, SPG, COST, MON.NEWS3: Here's why stocks are flying again: NYSE trader.NEWS4: 3 Retail Stocks That Will Survive Amazon’s Rise to Power.NEWS5: 3 Retail Stocks That Will Survive Amazon’s Rise to Power.NEWS6: Costco Wholesale Corp Declares Dividend.
2018-02-01: NEWS1: Watch out Costco — the Starbucks co-branded Visa is now available.
2018-02-02: NEWS1: What’s Included in Walmart’s Wage Hike?.NEWS2: New Research: Key Drivers of Growth for First Busey, Newtek Business Services, Lakeland Financial, Costco Wholesale, Dynavax Technologies, and Overstock — Factors of Influence, Major Initiatives and Sustained Production.
2018-02-05: NEWS1: After This Market Correction, 4 Retail Stocks Are Now Screaming Buys.NEWS2: The Week Ahead: IPOs Ramp Up Just As Earnings Season Fades.NEWS3: XLP, COST, CVS, KHC: ETF Outflow Alert.NEWS4: XLP, COST, CVS, KHC: ETF Outflow Alert.
2018-02-06: NEWS1: Why Sprouts Farmers Markets, Inc. Stock Climbed 15% Last Month.NEWS2: Why Sprouts Farmers Markets, Inc. Stock Climbed 15% Last Month.NEWS3: Noteworthy Tuesday Option Activity: COST, URI, MCD.NEWS4: Noteworthy Tuesday Option Activity: COST, URI, MCD.

Answer: Decrease