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:2021-09-22, Stock:WMT, The news for the past five days is as follows:
2021-09-15: NEWS1: Walmart Teams With Argo, Ford To Test Autonomous Vehicle Delivery Service.NEWS2: Walmart Drives Closer To Autonomous Delivery With Ford, Argo AI Deal.NEWS3: Biden meeting with top business execs to discuss vaccine mandate.NEWS4: Is Kroger Stock A Buy Right Now? Here's What Earnings, Charts Show.NEWS5: Walmart to Launch Self-Driving Delivery Service With Ford and Argo AI. What to Know..NEWS6: Rush for Speedy Deliveries Continue, Retailers Up their Game.NEWS7: Walmart Partners With Ford And Argo AI To Test Self-Driving Cars In Multiple Cities.NEWS8: Walmart to Test Self-Driving Delivery Service With Ford and Argo AI.NEWS9: 15 Dividend Stocks People Buy for Early Retirement.NEWS10: Walmart's (WMT) Sam's Club Takes Minimum Wage Up to $15.NEWS11: Walmart, Ford partner with AI company for self-driving delivery service in three cities.NEWS12: Ford, Walmart and Argo AI team up to launch autonomous vehicle delivery service.NEWS13: Walmart to Test Self-Driving Delivery Service With Ford and Argo AI.NEWS14: Buffett-Backed Indian Fintech Giant Faces Challenges as IPO Nears.
2021-09-16: NEWS1: Why Is Walmart (WMT) Down 3.1% Since Last Earnings Report?.NEWS2: Retail stocks to watch amid huge back-to-school season: Analyst.NEWS3: August retail sales unexpectedly rebound, jobless claims rise from pandemic-era low.NEWS4: 3 Top Growth Stocks You Can Buy and Hold Forever.NEWS5: Walmart (WMT)-Ford to Conduct Autonomous Vehicle Delivery Tests.NEWS6: T-Mobile and Walmart Team Up on 5G.NEWS7: Byju’s Buys Coding Site Tynker for $200 Million to Grow in U.S..NEWS8: Amazon Is Doing It. So Is Walmart. Why Retail Loves ‘Buy Now, Pay Later.’.
2021-09-17: NEWS1: Walgreens Boots heaps bonuses, rewards for pharmacists amid labor shortage.NEWS2: Fintechs Pose A Threat For Conventional Lenders - Read How.NEWS3: Kroger's Investor Presentation: 3 Takeaways.NEWS4: FOCUS-Banks beware, outsiders are cracking the code for finance.
2021-09-20: NEWS1: Billionaire Ray Dalio’s Thoughts on Bitcoin and 10 New Stocks in Portfolio.NEWS2: 'Buy Now, Pay Later' Consumer Financing Takes On Credit Cards.NEWS3: High-stakes Christmas looms as surging toy demand meets supply-chain snarls.NEWS4: FOCUS-High-stakes Christmas looms as surging toy demand meets supply-chain snarls.NEWS5: Amazon Vows ‘Zero Tolerance’ for Graft After India Probe Report.
2021-09-21: NEWS1: 2 Strong Stocks to Buy on the Dip Amid the September Pullback.NEWS2: Minimum wage, but better: These 5 retailers pay the highest hourly rates.NEWS3: Will the Next Big AI Stocks Be in Deliveries?.NEWS4: Walmart Launches 'Built for Better' To Help Customers Shop With Purpose.NEWS5: Top Research Reports for Facebook, Walmart & Novartis.NEWS6: China Tech Crackdown Is India’s Gain, Venture Investor Says.

Answer: Decrease