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:2018-02-21, Stock:COST, The news for the past five days is as follows:
2018-02-13: NEWS1: Forget the Healthy Food Trend, Buy These Fast-Food Stocks.NEWS2: Forget the Healthy Food Trend, Buy These Fast-Food Stocks.NEWS3: What to Expect from Walmart’s Fiscal 4Q18 Earnings.NEWS4: Amazon.com, Inc. May Break Out Above It’s 52-Week High.NEWS5: Amazon.com, Inc. May Break Out Above It’s 52-Week High.NEWS6: Can Walmart’s Fiscal 4Q18 Results Raise Its Stock Higher?.NEWS7: Jim Cramer: How This Market Can Get to a Better Place.NEWS8: Notable ETF Outflow Detected - VIG, ACN, NKE, COST.NEWS9: Notable ETF Outflow Detected - VIG, ACN, NKE, COST.NEWS10: Ex-Dividend Reminder: Costco Wholesale, Nexstar Media Group and Aqua America.NEWS11: Ex-Dividend Reminder: Costco Wholesale, Nexstar Media Group and Aqua America.NEWS12: See what the IHS Markit Score report has to say about Costco Wholesale Corp..NEWS13: Amazon Just Got Serious About Groceries.NEWS14: Beware Knee-Jerk Reaction Stock Moves.NEWS15: Beware Knee-Jerk Reaction Stock Moves.
2018-02-14: NEWS1: 5 Retailers Likely to Emerge Winners This Earnings Season.NEWS2: 5 Retailers Likely to Emerge Winners This Earnings Season.NEWS3: Sam's Club membership takes on Amazon and Costco.NEWS4: Notable Wednesday Option Activity: COST, BUFF, EW.NEWS5: Notable Wednesday Option Activity: COST, BUFF, EW.NEWS6: Sam's Club to offer free shipping for premium members.NEWS7: 3 Terrible Reasons to Sell Costco.NEWS8: 3 Terrible Reasons to Sell Costco.NEWS9: Walmart’s big bet is paying off in its battle against Amazon.NEWS10: Today's Retail Sales report is bad news for the economy and the Fed.NEWS11: Sam's Club to offer free shipping for premium members.NEWS12: Why Walmart’s Fiscal 4Q18 Margins Could Remain Low.NEWS13: 3 Terrible Reasons to Sell Costco.NEWS14: Costco Wholesale Corporation (COST) Ex-Dividend Date Scheduled for February 15, 2018.NEWS15: Costco Wholesale Corporation (COST) Ex-Dividend Date Scheduled for February 15, 2018.NEWS16: Dow futures tank on today&apos;s CPI data.NEWS17: Could Walmart’s Digital Business Continue to Grow in Fiscal 4Q18?.NEWS18: Why Walmart’s Top Line Could Continue to Grow in Fiscal 4Q18.NEWS19: Yahoo Finance Live: Market Movers - Feb 14th, 2018.NEWS20: Sam’s Club Offering Free Shipping In Challenge to Costco and Amazon.
2018-02-15: NEWS1: CSAIL 2015-C2 Commercial Mortgage Trust -- Moody's Affirms Seven Classes of CSAIL 2015-C2.NEWS2: Chris Davis Trims Praxair, American Express, Costco Positions.NEWS3: CSAIL 2015-C2 Commercial Mortgage Trust -- Moody's Affirms Seven Classes of CSAIL 2015-C2.NEWS4: Will Target’s Earnings per Share Return to Growth in Fiscal 2018?.NEWS5: Will Target’s Growth Measures Drive Sales Higher?.NEWS6: Retail Sales Fall: Which Way is the Sector Headed?.NEWS7: Retail Sales Fall: Which Way is the Sector Headed?.NEWS8: Why Baird Upgraded Target Stock.NEWS9: Yahoo Finance Exclusive: Amazon consolidating Prime Now and AmazonFresh.NEWS10: Retail Sales Fall: Which Way is the Sector Headed?.NEWS11: See what the IHS Markit Score report has to say about Costco Wholesale Corp..NEWS12: What Analysts Suggest for Walmart Stock.
2018-02-16: NEWS1: 3 Earnings Reports to Watch Next Week.NEWS2: 3 Earnings Reports to Watch Next Week.NEWS3: Walmart looks to make major deal, Amazon partners with Bank of America, Caterpillar says everything is okay.NEWS4: Coca-Cola earnings show the beverage business—not bottling—is booming.NEWS5: Target Corporation (TGT) Ex-Dividend Date Scheduled for February 20, 2018.NEWS6: Target Corporation (TGT) Ex-Dividend Date Scheduled for February 20, 2018.NEWS7: What to Expect from Target Stock.NEWS8: Is Target’s Current Valuation Attractive?.
2018-02-20: NEWS1: Cheesecake Factory, Fed minutes — What you need to know on Wednesday.NEWS2: Why COST, ROST, DLTR Are Likely to Trump Earnings Estimates.NEWS3: Investors dump Walmart shares on slowing online growth.NEWS4: Costco Auto Program Exceeds 520,000 Vehicles Sold in 2017.NEWS5: See what the IHS Markit Score report has to say about Costco Wholesale Corp..

Answer: Decrease