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:2018-05-01, Stock:COST, The news for the past five days is as follows:
2018-04-24: NEWS1: Costco increases dividend to 57 cents a share.NEWS2: Costco Wholesale Corporation Announces an Increase in Its Quarterly Cash Dividend.NEWS3: Is Prime Really Beating Costco Wholesale Corporation?.NEWS4: Is Prime Really Beating Costco Wholesale Corporation?.
2018-04-25: NEWS1: Costco Boosts Shareholder Value, Hikes Dividend.NEWS2: Daily Dividend Report: GM, COST, MET, WFC, MPC.NEWS3: Daily Dividend Report: GM, COST, MET, WFC, MPC.NEWS4: SuperValu Inc. (SVU) Stock Isn’t Really a Super Value.NEWS5: Noteworthy ETF Inflows: IVE, C, COST, USB.NEWS6: Noteworthy ETF Inflows: IVE, C, COST, USB.NEWS7: How Walmart Is Stepping up Its Delivery Game.NEWS8: Costco Hikes Dividend: 3 More Things That May Arouse Interest.NEWS9: Costco Hikes Dividend: 3 More Things That May Arouse Interest.NEWS10: Here's RH's Blueprint for Amazon-Proofing Itself and Outsmarting the Rest of Retail.NEWS11: Here's RH's Blueprint for Amazon-Proofing Itself and Outsmarting the Rest of Retail.NEWS12: Costco Hikes Dividend: 3 More Things That May Arouse Interest.NEWS13: These 9 Retailers Are Actually Opening Stores.
2018-04-26: NEWS1: About to Buy Bitcoin? Look at These 3 Companies First.NEWS2: About to Buy Bitcoin? Look at These 3 Companies First.NEWS3: About to Buy Bitcoin? Look at These 3 Companies First.NEWS4: MARKETS: Stocks are swinging up and down on technicals while liquidity remains scarce.NEWS5: Wall Street’s Recommendations for Costco, Walmart, and Target.
2018-04-27: nan
2018-04-30: NEWS1: Exxon Mobil Corporation Leads 6 Dividend Stocks Boosting Payouts.NEWS2: Exxon Mobil Corporation Leads 6 Dividend Stocks Boosting Payouts.NEWS3: Retailers Benefiting Most From The Tax Cut.NEWS4: Taking Stock of Twitter; Comcast Casts Its Net for Sky.NEWS5: Taking Stock of Twitter; Comcast Casts Its Net for Sky.NEWS6: Taking Stock of Twitter; Comcast Casts Its Net for Sky.NEWS7: MARKETS: Oil markets react to Iran latest, Apple stocks up ahead of earnings report, Walmart helps retails sector.NEWS8: Central Garden & Pet's (CENT) Q2 Earnings: What's in Store?.NEWS9: Central Garden & Pet's (CENT) Q2 Earnings: What's in Store?.

Answer: Decrease