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:2018-12-31, Stock:COST, The news for the past five days is as follows:
2018-12-21: NEWS1: SHAREHOLDER ALERT: Pomerantz Law Firm Reminds Shareholders with Losses on their Investment in Costco Wholesale Corporation of Class Action Lawsuit and Upcoming Deadline - COST.NEWS2: SHAREHOLDER ALERT: COST NKTR TX APHA: The Law Offices of Vincent Wong Reminds Investors of Important Class Action Deadlines.NEWS3: IMPORTANT DEADLINE REMINDER: The Schall Law Firm Announces the Filing of a Class Action Lawsuit Against Costco Wholesale Corporation and Encourages Investors with Losses in Excess of $100,000 to Contact the Firm.NEWS4: Super Saturday the Biggest Shopping Day of 2018? 4 ETF Deals.
2018-12-24: NEWS1: Don't Blame Amazon for Blue Apron's Debacle.NEWS2: Don't Blame Amazon for Blue Apron's Debacle.NEWS3: EARLY JANUARY DEADLINE ALERT: The Schall Law Firm Announces the Filing of a Class Action Lawsuit Against Costco Wholesale Corporation and Encourages Investors with Losses in Excess of $100,000 to Contact the Firm.NEWS4: Costco Stock Could Rise After a Recent Dip, Says Analyst.NEWS5: 3 Reasons Nearly Everyone Renews Their Costco Membership.NEWS6: 3 Reasons Nearly Everyone Renews Their Costco Membership.NEWS7: 3 Reasons Nearly Everyone Renews Their Costco Membership.NEWS8: Consumers disconnected from markets: Consultant.NEWS9: See what the IHS Markit Score report has to say about Costco Wholesale Corp..
2018-12-26: NEWS1: Amazon Posts Record-Breaking Holiday Sales: Time to Buy AMZN Stock?.NEWS2: SHAREHOLDER ALERT: The Schall Law Firm Announces the Filing of a Class Action Lawsuit Against Costco Wholesale Corporation and Encourages Investors with Losses in Excess of $100,000 to Contact the Firm.NEWS3: CLASS ACTION UPDATE for COST, TSRO, and XPO: Levi & Korsinsky, LLP Reminds Investors of Class Actions on Behalf of Shareholders.NEWS4: Costco Could Outperform It Peers in Upcoming Quarters.NEWS5: Wall Street Sees Huge Upside in TGT, WMT, and COST Stock.NEWS6: 4 Stocks That Made the Biggest Comebacks in 2018.NEWS7: 4 Stocks That Made the Biggest Comebacks in 2018.NEWS8: SHAREHOLDER ALERT - Bronstein, Gewirtz & Grossman, LLC Reminds Investors of Class Action Against Costco Wholesale Corporation (COST) & Lead Plaintiff Deadline: January 7, 2019.NEWS9: Why Big-Box Retailer Stocks Look Attractive.NEWS10: 4 Stocks That Made the Biggest Comebacks in 2018.
2018-12-27: NEWS1: Deadline Alert: The Law Offices of Howard G. Smith Reminds Investors of Looming Deadline in the Class Action Lawsuit Against Costco Wholesale Corporation.NEWS2: Notable ETF Inflow Detected - XLP, KO, PEP, COST.NEWS3: Notable ETF Inflow Detected - XLP, KO, PEP, COST.NEWS4: IMPORTANT INVESTOR DEADLINE: The Schall Law Firm Announces the Filing of a Class Action Lawsuit Against Costco Wholesale Corporation and Encourages Investors with Losses in Excess of $100,000 to Contact the Firm.NEWS5: The Street Reacts To Holiday Retail Sales.NEWS6: SHAREHOLDER ALERT: COST NSANY MAR: The Law Offices of Vincent Wong Reminds Investors of Important Class Action Deadlines.NEWS7: The Zacks Analyst Blog Highlights: Twitter, TripAdvisor, Costco Wholesale and Chipotle Mexican Grill.NEWS8: The Zacks Analyst Blog Highlights: Twitter, TripAdvisor, Costco Wholesale and Chipotle Mexican Grill.NEWS9: When Americans Ask for Directions, They're Probably Hungry, a Survey Shows.NEWS10: When Americans Ask for Directions, They're Probably Hungry, a Survey Shows.NEWS11: The Zacks Analyst Blog Highlights: Twitter, TripAdvisor, Costco Wholesale and Chipotle Mexican Grill.NEWS12: When Americans Ask for Directions, They&apos;re Probably Hungry, a Survey Shows.NEWS13: Glancy Prongay & Murray LLP Reminds Investors of the Deadline in the Class Action Lawsuit Against Costco Wholesale Corporation (COST).
2018-12-28: NEWS1: Noteworthy Friday Option Activity: COST, CAH, TIF.NEWS2: Noteworthy Friday Option Activity: COST, CAH, TIF.NEWS3: INVESTOR ACTION ALERT: The Schall Law Firm Announces the Filing of a Class Action Lawsuit Against Costco Wholesale Corporation and Encourages Investors with Losses in Excess of $100,000 to Contact the Firm.NEWS4: Margin Pressures Could Hold Back Costco Stock, but Not for Long.NEWS5: Margin Pressures Could Hold Back Costco Stock, but Not for Long.NEWS6: ALERT: Pawar Law Group Announces a Securities Class Action Lawsuit Against Costco Wholesale Corporation - COST.NEWS7: Why Sears will officially cease to exist soon.NEWS8: SHAREHOLDER ALERT - Bronstein, Gewirtz & Grossman, LLC Reminds Investors of Class Action Against Costco Wholesale Corporation (COST) and Lead Plaintiff Deadline: January 7, 2019.NEWS9: Top 10 Stock Market Predictions for 2019.NEWS10: Margin Pressures Could Hold Back Costco Stock, but Not for Long.NEWS11: The Klein Law Firm Reminds Investors of Class Actions on Behalf of Shareholders of COST, NKTR, FIT and RBBN.NEWS12: SHAREHOLDER ALERT: Pomerantz Law Firm Reminds Shareholders with Losses on their Investment in Costco Wholesale Corporation of Class Action Lawsuit and Upcoming Deadline – COST.

Answer: Rise