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:2019-09-18, Stock:PFE, The news for the past five days is as follows:
2019-09-11: NEWS1: 5 Companies Growing Earnings.NEWS2: Dow Jones Today: Plenty of Good News.NEWS3: Leaner Pfizer Positioned to Boost R&D Output.NEWS4: 4 Big Drugmakers Boasting Impressive Oncology Pipelines.NEWS5: Merck KGaA lung cancer drug is 3rd on U.S. watchdog's priority lane.NEWS6: Pfizer's Pneumococcal Vaccine Shows Potential in Infants.NEWS7: Pfizer's Pneumococcal Vaccine Shows Potential in Infants.
2019-09-12: NEWS1: Gilead Tops List of Most Innovative Drug Companies.NEWS2: Noteworthy ETF Outflows: XLV, UNH, MRK, PFE.NEWS3: Noteworthy ETF Outflows: XLV, UNH, MRK, PFE.NEWS4: 3 Large-Cap Healthcare Stocks Recently Hitting All-Time Highs: Are They Buys?.NEWS5: 3 Large-Cap Healthcare Stocks Recently Hitting All-Time Highs: Are They Buys?.NEWS6: Merck & Company, Inc. (MRK) Ex-Dividend Date Scheduled for September 13, 2019.NEWS7: Merck & Company, Inc. (MRK) Ex-Dividend Date Scheduled for September 13, 2019.
2019-09-13: NEWS1: Pharma Stock Roundup: Pipeline/Regulatory Updates From GSK, PFE & Others.NEWS2: Renal Cell Carcinoma Space in Focus: Some Key Developments.
2019-09-16: NEWS1: Pfizer (PFE) Stock Moves -0.24%: What You Should Know.NEWS2: Ex-FDA commissioner Gottlieb wants to keep his Boston speech 'off-the-record'.NEWS3: Breast Cancer Drugs May Inflame Lungs Per FDA Safety Alert.
2019-09-17: NEWS1: Pfizer Invites Public to View and Listen to Webcast of October 29 Conference Call With Analysts.NEWS2: Our Ultimate Stock-Pickers' Top 10 Dividend-Yielding Stocks.

Answer: Decrease