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:2019-08-20, Stock:PFE, The news for the past five days is as follows:
2019-08-13: NEWS1: Tech Leads Trade-Induced Stock Rally.NEWS2: Tech Leads Trade-Induced Stock Rally.NEWS3: After Hours Most Active for Aug 13, 2019 :  PFE, QQQ, AKRX, INTC, DOW, SQ, SLM, DISCA, HPQ, AMD, DHI, WM.NEWS4: After Hours Most Active for Aug 13, 2019 :  PFE, QQQ, AKRX, INTC, DOW, SQ, SLM, DISCA, HPQ, AMD, DHI, WM.NEWS5: Market Close Report: NASDAQ Composite Index closes above 8000; up 152.95 points at 8,016.36.NEWS6: Market Close Report: NASDAQ Composite Index closes above 8000; up 152.95 points at 8,016.36.NEWS7: Tuesday’s Vital Data: Uber, Pfizer and Roku.NEWS8: Tuesday’s Vital Data: Uber, Pfizer and Roku.NEWS9: Tuesday’s Vital Data: Uber, Pfizer and Roku.NEWS10: Dow Analyst Moves: PFE.NEWS11: Dow Analyst Moves: PFE.NEWS12: Health Care Sector Update for 08/13/2019: DCPH, DRIO, ELAN, JNJ, PFE, ABT, MRK, AMGN.NEWS13: Health Care Sector Update for 08/13/2019: DCPH, DRIO, ELAN, JNJ, PFE, ABT, MRK, AMGN.NEWS14: 3 Big Stock Charts for Tuesday: Centene, Hormel Foods and Advance Auto Parts.NEWS15: GSK's new pharma president carries Merck, Pfizer experience.NEWS16: 5 Biggest New Drugs Approved in 2019 So Far.
2019-08-14: NEWS1: After Hours Most Active for Aug 13, 2019 :  QQQ, PFE, INTC, AKRX, CLVS, AMD, CMCSA, DOW, KMI, KDP, HPQ, SQ.NEWS2: After Hours Most Active for Aug 13, 2019 :  QQQ, PFE, INTC, AKRX, CLVS, AMD, CMCSA, DOW, KMI, KDP, HPQ, SQ.NEWS3: Vaccinex (VCNX) Attains Full Enrollment in Lung Cancer Study.NEWS4: Vaccinex (VCNX) Attains Full Enrollment in Lung Cancer Study.NEWS5: Vaccinex (VCNX) Attains Full Enrollment in Lung Cancer Study.NEWS6: Deciphera's GIST Drug Succeeds in Pivotal Study, Stock Up 80%.NEWS7: Deciphera's GIST Drug Succeeds in Pivotal Study, Stock Up 80%.NEWS8: Deciphera's GIST Drug Succeeds in Pivotal Study, Stock Up 80%.NEWS9: Germany's Stada is &quot;very selective&quot; on acquisitions, CEO says.
2019-08-15: NEWS1: 10 Cheap Dividend Stocks to Load Up On.NEWS2: 10 Cheap Dividend Stocks to Load Up On.NEWS3: The Top Pharma Stocks for 2019.NEWS4: Sarepta's Lone Analyst Skeptic Takes On 22 Bulls With Renewed Warnings.NEWS5: Pfizer recalls two lots of migraine drug due to potential bacterial contamination.NEWS6: 10 Cheap Dividend Stocks to Load Up On.NEWS7: Merck's Cancer Immunotherapy Keytruda Continues to Aid Growth.NEWS8: Merck's Cancer Immunotherapy Keytruda Continues to Aid Growth.NEWS9: Health Care Sector Update for 08/15/2019: CGC, A, MNK, JNJ, PFE, ABT, MRK, AMGN.NEWS10: Health Care Sector Update for 08/15/2019: CGC, A, MNK, JNJ, PFE, ABT, MRK, AMGN.NEWS11: Merck's Cancer Immunotherapy Keytruda Continues to Aid Growth.NEWS12: Bain executive joins biotech startup Cerevel's C-suite.
2019-08-16: NEWS1: How AbbVie Plans To Take On Pfizer, Lilly — And Kick Its Humira Habit.NEWS2: Pharma Stock Roundup: Pipeline/Regulatory Updates From JNJ, LLY, AZN, RHHBY.NEWS3: Pharma Stock Roundup: Pipeline/Regulatory Updates From JNJ, LLY, AZN, RHHBY.NEWS4: VONV, DIS, PFE, VZ: Large Outflows Detected at ETF.NEWS5: VONV, DIS, PFE, VZ: Large Outflows Detected at ETF.NEWS6: Pharma Stock Roundup: Pipeline/Regulatory Updates From JNJ, LLY, AZN, RHHBY.NEWS7: What Has Led Bristol-Myers Squibb's Stock To Fall More Than 35% Over The Last 3 Years?.NEWS8: What Has Led Bristol-Myers Squibb's Stock To Fall More Than 35% Over The Last 3 Years?.NEWS9: Health Care Sector Update for 08/16/2019: ARAY, TTOO, JNJ, PFE, ABT, MRK, AMGN.NEWS10: Health Care Sector Update for 08/16/2019: ARAY, TTOO, JNJ, PFE, ABT, MRK, AMGN.
2019-08-19: NEWS1: Monday's ETF with Unusual Volume: IXJ.NEWS2: Monday's ETF with Unusual Volume: IXJ.NEWS3: Obesity Epidemic Leads To A New Problem — And It Could Be Worth Billions.NEWS4: Solid Biosciences Surges on DMD Gene Therapy Study Amendments.NEWS5: Solid Biosciences Surges on DMD Gene Therapy Study Amendments.NEWS6: Health Care Sector Update for 08/19/2019: CHEK, VIVE, VNDA, JNJ, PFE, ABT, MRK, AMGN.NEWS7: Health Care Sector Update for 08/19/2019: CHEK, VIVE, VNDA, JNJ, PFE, ABT, MRK, AMGN.NEWS8: Solid Biosciences Surges on DMD Gene Therapy Study Amendments.NEWS9: Pfizer (NYSE:PFE) Shareholders Have Enjoyed A 20% Share Price Gain.

Answer: Decrease