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:2020-05-29, Stock:PFE, The news for the past five days is as follows:
2020-05-21: NEWS1: Fmr. CDC Official: 'we’re not cutting any corners' on COVID-19 vaccine development.NEWS2: For Moderna, a Coronavirus Vaccine Would Be the “Tip of the Iceberg”.NEWS3: AstraZeneca/Merck's Lynparza Get FDA Nod for Prostate Cancer.
2020-05-22: NEWS1: Pfizer Inc. Recommends Rejection of Unsolicited Note Tender Offer by Huguenot Bond Liquidity, LLC.NEWS2: Coronavirus latest: Friday, May 22.NEWS3: Is Pfizer (PFE) a Great Value Stock Right Now?.NEWS4: The race for a coronavirus treatment is fanning fears of 'vaccine nationalism'.NEWS5: Telehealth is going to 'become the default' for patients: Ro CEO.NEWS6: Everything you need to know about the Oxford University vaccine and other efforts to beat coronavirus.NEWS7: The race for a coronavirus treatment is fanning fears of 'vaccine nationalism'.NEWS8: Pharma Stock Roundup: FDA Ok's Cancer Drugs for New Use, JNJ Stops US Baby Powder Sales.NEWS9: Coronavirus Vaccine Race Pushes Up Pharma Giants' Production.
2020-05-26: NEWS1: Hedge Funds Are Warming Up To Pfizer Inc. (PFE).NEWS2: Coronavirus update: Novavax begins vaccine trials; Brazil reports second-highest number of cases in world.NEWS3: Novavax expects COVID-19 vaccine trial results in July.NEWS4: Anti-anxiety medication prescriptions have spiked 34% during the coronavirus pandemic.NEWS5: The Zacks Analyst Blog Highlights: Moderna, Pfizer, BioNTech, Sanofi and GlaxoSmithKline.NEWS6: Merck Dives Into Covid-19 Fray With Two Vaccines and One Antiviral.NEWS7: Novavax and Merck Fuel COVID-19 Vaccine Hopes.NEWS8: Coronavirus Vaccine Efforts Continue, Novavax Begins Human Trial.NEWS9: ContraFect Corporation Announces Private Placement of Common Stock and Warrants to Pfizer Inc..
2020-05-27: NEWS1: The Zacks Analyst Blog Highlights: Novavax, Moderna, Pfizer, Gilead and Vir Biotechnology.NEWS2: Merck Inks 3 Deals for Coronavirus Anti-infective & Vaccines.NEWS3: Pharma exports a rare bright spot for Singapore economy as pandemic drives demand.
2020-05-28: NEWS1: Merck, Pfizer share gains contribute to Dow's 86-point climb.NEWS2: Dow up 200 points on gains in shares of Boeing, Pfizer.NEWS3: ER doctor: 12-18 month coronavirus vaccine timeline 'is extremely optimistic'.NEWS4: Pfizer (PFE) Down 1.9% Since Last Earnings Report: Can It Rebound?.NEWS5: Pfizer ties up with glass maker Corning for vial supply.NEWS6: Dow climbs 69 points on gains in shares of Boeing, Merck.NEWS7: Corning and Pfizer Announce Supply Agreement for Corning Valor® Glass Packaging.NEWS8: The lessons and consequences of a failed megadeal.

Answer: Rise