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:2018-02-12, Stock:COST, The news for the past five days is as follows:
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.
2018-02-07: NEWS1: Is Costco Wholesale Corporation (NASDAQ:COST) A Sell At Its Current PE Ratio?.NEWS2: Costco Wholesale January Comps Up 6%.NEWS3: Costco Wholesale January Comps Up 6%.NEWS4: Costco Sits Out Rally Ahead of January Sales.
2018-02-08: NEWS1: Why Target Stock Has Jumped 12.3% Year-to-Date.NEWS2: Don't Shop at Costco Until Things Are REALLY On Sale!.NEWS3: Costco Keeps Increasing Sales and January Comps Remain Strong.NEWS4: Does Amazon Prime’s 2-hour free food shipping make it a better deal than Costco?.NEWS5: Costco Wholesale Corporation Reports January Sales Results.
2018-02-09: NEWS1: S&P 500 Analyst Moves: COST.NEWS2: S&P 500 Analyst Moves: COST.NEWS3: Amazon wants to reportedly deliver more items with its own delivery service.NEWS4: 8 Companies Amazon Is Killing.NEWS5: [$$] Selling CVS, Chipotle, Costco and Qualcomm.NEWS6: What Analysts Recommend for Costco, Walmart, and Target.

Answer: Rise