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:2018-05-03, Stock:COST, The news for the past five days is as follows:
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?.
2018-05-01: NEWS1: Unstoppable Amazon.com, Inc. Stock Is Close to Perfect.NEWS2: Better Buy: Costco Wholesale Corporation vs. Amazon.NEWS3: Better Buy: Costco Wholesale Corporation vs. Amazon.NEWS4: Better Buy: Costco Wholesale Corporation vs. Amazon.NEWS5: What Costco's 14% Dividend Boost Means.NEWS6: What Costco's 14% Dividend Boost Means.NEWS7: What Costco&apos;s 14% Dividend Boost Means.
2018-05-02: NEWS1: Amazon: The latest perks Prime members are getting at Whole Foods.NEWS2: Think Retail Is Doomed? You Have to See This Company’s Latest Results.NEWS3: Think Retail Is Doomed? You Have to See This Company’s Latest Results.NEWS4: Unstoppable Amazon.com, Inc. Stock Is Close to Perfect.NEWS5: Unstoppable Amazon.com, Inc. Stock Is Close to Perfect.

Answer: Decrease