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:2018-02-05, Stock:COST, The news for the past five days is as follows:
2018-01-29: NEWS1: Amazon & Blue Apron Help Ignite Online Grocery Industry.NEWS2: Amazon & Blue Apron Help Ignite Online Grocery Industry.NEWS3: Notable Monday Option Activity: COST, V, PHM.NEWS4: Notable Monday Option Activity: COST, V, PHM.NEWS5: Here's Why the Best Is Yet to Come for Costco.NEWS6: Here's Why the Best Is Yet to Come for Costco.NEWS7: Chenault dealt with crises, competition as head of AmEx.NEWS8: Here&apos;s Why the Best Is Yet to Come for Costco.NEWS9: [$$] By Shrinking, Can Sam’s Club Keep Up With Costco?.
2018-01-30: NEWS1: Costco Wholesale Corporation Announces Quarterly Cash Dividend.NEWS2: Correction: American Express-CEO Interview story.NEWS3: Bezos to Amazon Studios: Go Big or Go Home.NEWS4: Bezos to Amazon Studios: Go Big or Go Home.
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.

Answer: Decrease