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:2018-02-28, Stock:COST, The news for the past five days is as follows:
2018-02-21: NEWS1: Better Stock: Walmart Inc. (WMT) vs. Costco Wholesale Corporation (COST).NEWS2: Why Walmart Stock Fell More than 10% in Fiscal 4Q18.NEWS3: Can Kroger Find a Partner to Help It Beat Amazon and Whole Foods?.NEWS4: Can Kroger Find a Partner to Help It Beat Amazon and Whole Foods?.NEWS5: Can Kroger Find a Partner to Help It Beat Amazon and Whole Foods?.NEWS6: What Amazon May Have Planned Next for Whole Foods.NEWS7: See what the IHS Markit Score report has to say about Costco Wholesale Corp..NEWS8: Is Amazon’s Whole Foods Living up to Expectations?.NEWS9: Why COST, ROST, DLTR Are Likely to Trump Earnings Estimates.NEWS10: Why COST, ROST, DLTR Are Likely to Trump Earnings Estimates.
2018-02-22: NEWS1: Noteworthy Thursday Option Activity: TWX, CVI, COST.NEWS2: Noteworthy Thursday Option Activity: TWX, CVI, COST.NEWS3: How Costco’s Stock Can Soar On E-Commerce.NEWS4: XLP, KO, PEP, COST: ETF Outflow Alert.NEWS5: XLP, KO, PEP, COST: ETF Outflow Alert.NEWS6: Stocks rally full steam after 2-day slide.NEWS7: How Analysts Reacted to Walmart’s Fiscal 4Q18 Results.NEWS8: Walmart launches ‘glam’ and ‘farmhouse’ styles on revamped home site.NEWS9: Yahoo Finance Live: Midday Movers - Feb 22nd, 2018.NEWS10: Walmart’s US Segment Is a Key Revenue Driver.NEWS11: Why Walmart Missed Analyst EPS Estimates.NEWS12: How Walmart’s Sales Fared in Fiscal 4Q18.NEWS13: Better Stock: Walmart Inc. (WMT) vs. Costco Wholesale Corporation (COST).NEWS14: Better Stock: Walmart Inc. (WMT) vs. Costco Wholesale Corporation (COST).
2018-02-23: NEWS1: Is American Express Company a Buy?.NEWS2: Is American Express Company a Buy?.NEWS3: 95-year-old bread business betting it all on the pretzel bun, with help from Whole Foods, Costco.NEWS4: 95-year-old bread business betting it all on the pretzel bun, with help from Whole Foods, Costco.NEWS5: Is American Express Company a Buy?.NEWS6: Can Walmart Regain Investor Confidence?.NEWS7: Costco's testing self-service food kiosks in a Seattle-area warehouse.
2018-02-26: NEWS1: Amazon Prime: Is it worth it?.NEWS2: Stocks to open higher, Trump lawyers examine how POTUS should testify to Mueller.
2018-02-27: NEWS1: Alibaba encroaches on Amazon’s turf, GM makes progress in South Korea, Sam’s Club and Instacart team up.NEWS2: This company offers the best pay and benefits package.NEWS3: Sam’s Club Jumps Into Same-Day Grocery Delivery With Instacart’s Help.

Answer: Rise