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:2018-05-11, Stock:COST, The news for the past five days is as follows:
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.
2018-05-09: NEWS1: Costco Wholesale April Comparable Sales Up 10.9%.NEWS2: Costco Wholesale April Comparable Sales Up 10.9%.NEWS3: Seattle pulls in more than $4 million in first months of sugary drink tax.NEWS4: Walmart–Flipkart Megadeal Announced, Stock Falls More than 4%.NEWS5: Walmart Inc. (WMT) Ex-Dividend Date Scheduled for May 10, 2018.NEWS6: Walmart Inc. (WMT) Ex-Dividend Date Scheduled for May 10, 2018.NEWS7: Costco Wholesale Corporation (COST) Ex-Dividend Date Scheduled for May 10, 2018.NEWS8: Costco Wholesale Corporation (COST) Ex-Dividend Date Scheduled for May 10, 2018.NEWS9: Ex-Dividend Alert: Costco Wholesale Boosted its Dividend By 12%; Will Trade Ex-Dividend on May 10, 2018.
2018-05-10: NEWS1: Why Blue Apron Holding Inc Stock Sold Off Today.NEWS2: Why Blue Apron Holding Inc Stock Sold Off Today.NEWS3: Why Blue Apron Holding Inc Stock Sold Off Today.NEWS4: Walmart to Report Q1 Results: Investors’ Focus.NEWS5: Victoria&apos;s Secret Parent L Brands Stock Dives On Profit Warning, Flat Comparable Sales.NEWS6: Why Analysts Have a Positive Outlook on Costco Stock.NEWS7: Costco (COST) Continues With Stellar Comparable Sales Run.NEWS8: Costco (COST) Continues With Stellar Comparable Sales Run.NEWS9: Interesting COST Put And Call Options For June 29th.NEWS10: Interesting COST Put And Call Options For June 29th.NEWS11: Will Costco Stock Gain from Its Impressive April Sales?.NEWS12: Costco (COST) Continues With Stellar Comparable Sales Run.NEWS13: Costco: Growing Online While Stores Keep Performing.NEWS14: Costco e-commerce maintains momentum in April sales results.NEWS15: Costco e-commerce maintains momentum in April sales results.NEWS16: Costco Wholesale Corporation Reports April Sales Results.

Answer: Rise