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:2018-05-09, Stock:COST, The news for the past five days is as follows:
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.
2018-05-03: NEWS1: Costco cuts regular soda from food courts, citing sugary drink taxes.NEWS2: Blue Apron brings its meal-kits to Costco stores.NEWS3: Notable ETF Inflow Detected - IVE, C, COST, USB.NEWS4: Notable ETF Inflow Detected - IVE, C, COST, USB.NEWS5: [$$] Delivery Outfit Blue Apron Turns to Costco to Help Sell Meals.NEWS6: [$$] Blue Apron Sells Meal Kits at Costco.
2018-05-04: NEWS1: How Investing $100 a Month Can Be Life-Changing.NEWS2: How Investing $100 a Month Can Be Life-Changing.NEWS3: Beverages & More, Inc. -- Moody's downgrades BevMo's CFR to Caa1; outlook negative.NEWS4: Why Blue Apron Holdings Inc. Popped Again Today.NEWS5: Why Blue Apron Holdings Inc. Popped Again Today.NEWS6: Noteworthy Friday Option Activity: MLM, COST, CBOE.NEWS7: Noteworthy Friday Option Activity: MLM, COST, CBOE.NEWS8: A Look at Blue Apron’s 1Q18 Sales.NEWS9: NYSE trader: Billionaires like Buffett are bullish and buying this whole market—not just Apple.NEWS10: Blue Apron Stock Rises 9.5% after 1Q18 Results.NEWS11: Why Blue Apron Holdings Inc. Popped Again Today.NEWS12: Here’s why Amazon wants a 3D scan of your body.NEWS13: Costco Auto Program Announces Nationwide Special Offer with Volvo.NEWS14: [$$] Meal-Kit Maker Blue Apron Turns to Costco as Customer Growth Slows.
2018-05-07: NEWS1: 3 retail stocks to buy right now: Technician.NEWS2: Here is Charlie Munger&apos;s &apos;first rule of value investing&apos;.NEWS3: Former Starbucks executive jumps onboard as new East Bay food company CEO.NEWS4: Warren Buffett, ones of Coke&apos;s biggest fans, cools on Coca-Cola future (Video).NEWS5: Where Office Depot Stock Is Heading.NEWS6: Analysts’ Views on Office Depot Stock, Pre-1Q18 Results.NEWS7: Blue Apron’s pilot at Costco will help it reach a wider market, analysts say.
2018-05-08: NEWS1: Chef’d selling meal kits at Costco, Gelson’s, other retailers.NEWS2: Blue Apron Shows Flickers of Life. Is It Time to Buy?.NEWS3: Ex-Dividend Reminder: Costco Wholesale, Nexstar Media Group and Walmart.NEWS4: Ex-Dividend Reminder: Costco Wholesale, Nexstar Media Group and Walmart.NEWS5: You will now see calorie counts on every menu item nationwide.NEWS6: Better Buy: Costco Wholesale Corporation vs. Target.NEWS7: Better Buy: Costco Wholesale Corporation vs. Target.NEWS8: Better Buy: Costco Wholesale Corporation vs. Target.

Answer: Rise