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:2019-08-21, Stock:PFE, The news for the past five days is as follows:
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.
2019-08-20: NEWS1: Bayer Sells Animal Health Division to Elanco: Now What?.NEWS2: 3 Great Active Mutual Funds for the Current Environment.NEWS3: 3 Great Active Mutual Funds for the Current Environment.NEWS4: 3 Healthcare Stocks to Trade: UNH, JNJ and PFE.NEWS5: Pfizer-backed cancer treatment innovator SpringWorks eyes $115M IPO.NEWS6: 3 Great Active Mutual Funds for the Current Environment.NEWS7: Dow Inc., American Express share losses contribute to Dow's nearly 75-point drop.NEWS8: Sarepta Stock Falls as FDA Denies Approval to Golodirsen.NEWS9: Sarepta Stock Falls as FDA Denies Approval to Golodirsen.NEWS10: Exelixis (EXEL) Stock Up 15.2% YTD on Strong Cabometyx Sales.NEWS11: Exelixis (EXEL) Stock Up 15.2% YTD on Strong Cabometyx Sales.NEWS12: Parents Push One Rare-Disease Drug Through FDA, Not Its Successor.NEWS13: Exelixis (EXEL) Stock Up 15.2% YTD on Strong Cabometyx Sales.NEWS14: Sarepta Stock Falls as FDA Denies Approval to Golodirsen.NEWS15: Health Care Sector Update for 08/20/2019: SYBX, SRPT, MDT, JNJ, PFE, MRK, ABT, AMGN.NEWS16: Health Care Sector Update for 08/20/2019: SYBX, SRPT, MDT, JNJ, PFE, MRK, ABT, AMGN.NEWS17: Deciphera Pharmaceuticals: Buy at the High?.NEWS18: Deciphera Pharmaceuticals: Buy at the High?.NEWS19: The Pfizer Foundation Invests in 20 Organizations Tackling Infectious Diseases and Antimicrobial Resistance.

Answer: Rise