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:2018-12-27, Stock:NVS, The news for the past five days is as follows:
2018-12-19: NEWS1: Tilray shares surge after announcing $100 million deal with AB InBev to study cannabis-based beverages.NEWS2: Tilray Stock Up on Medical Cannabis Collaboration With Sandoz.NEWS3: Tilray Stock Up on Medical Cannabis Collaboration With Sandoz.NEWS4: Aduro Stock Surges on STING Activator Deal With Eli Lilly.NEWS5: Aduro Stock Surges on STING Activator Deal With Eli Lilly.NEWS6: Glaxo, Pfizer to Merge Consumer Health Units, Form New JV.NEWS7: Glaxo, Pfizer to Merge Consumer Health Units, Form New JV.NEWS8: Company News For Dec 19, 2018.NEWS9: Company News For Dec 19, 2018.NEWS10: Aduro Stock Surges on STING Activator Deal With Eli Lilly.NEWS11: Tilray Stock Up on Medical Cannabis Collaboration With Sandoz.NEWS12: Company News For Dec 19, 2018.NEWS13: Glaxo, Pfizer to Merge Consumer Health Units, Form New JV.NEWS14: Pre-Market Most Active for Dec 19, 2018 :  GE, MU, RCII, GSK, PBR, NVS, AMD, QQQ, ABX, MFG, FB, SQQQ.NEWS15: Pre-Market Most Active for Dec 19, 2018 :  GE, MU, RCII, GSK, PBR, NVS, AMD, QQQ, ABX, MFG, FB, SQQQ.NEWS16: Novartis, China's Gan & Lee push into insulin amid diabetes epidemic.NEWS17: Novartis links with China's Gan & Lee in global insulin push.NEWS18: Sandoz Enters Agreement To Commercialize Three Biosimilar Insulins - Quick Facts.NEWS19: Sandoz Enters Agreement To Commercialize Three Biosimilar Insulins - Quick Facts.NEWS20: Alcon Acquires Privately-held Tear Film Innovations - Quick Facts.NEWS21: Alcon Acquires Privately-held Tear Film Innovations - Quick Facts.
2018-12-20: NEWS1: Tilray CEO still thinks his cannabis company could be worth $100 billion even with the extreme stock market volatility.NEWS2: Commentary: GSK, Pfizer and GE shift away from diversification in latest round of health-care deals.NEWS3: Is Tilray Stock a Must-Buy Following New Partnership?.NEWS4: Is Tilray Stock a Must-Buy Following New Partnership?.NEWS5: Novartis oncology boss Barrett makes quick exit.NEWS6: Pre-Market Most Active for Dec 20, 2018 :  NVS, SQQQ, DBVT, AMD, GE, QQQ, SBGL, BHP, MU, TQQQ, GSK, LYG.NEWS7: Pre-Market Most Active for Dec 20, 2018 :  NVS, SQQQ, DBVT, AMD, GE, QQQ, SBGL, BHP, MU, TQQQ, GSK, LYG.NEWS8: The Daily Biotech Pulse: Tilray Inks Cannabis Drink Pact, Double Delight For Merck, FDA Snub For Spectrum.NEWS9: Is Tilray Stock a Must-Buy Following New Partnership?.NEWS10: Novartis appoints Susanne Schaffert to lead oncology business.NEWS11: Major pharma companies plan to raise drug prices in January: report.NEWS12: Exclusive: Big Pharma returning to U.S. price hikes in January after pause.NEWS13: 7 Stocks That Made Big Moves After-hours (TLRY, SPPI, ADMA, DBVT...).NEWS14: 7 Stocks That Made Big Moves After-hours (TLRY, SPPI, ADMA, DBVT...).
2018-12-21: NEWS1: Novartis Enters Oversold Territory (NVS).NEWS2: Novartis Enters Oversold Territory (NVS).NEWS3: Why Gene Therapy Is More Cost Effective Than Biogen's Approved Drug.NEWS4: Pfizer and GlaxoSmithKline’s Joint Venture: What to Expect.NEWS5: Novartis (NVS) Offers to Buy French Gene Therapy Manufacturer.NEWS6: Novartis (NVS) Offers to Buy French Gene Therapy Manufacturer.NEWS7: Pre-Market Most Active for Dec 21, 2018 :  NVS, AFL, NBR, GNW, AMD, SQQQ, TQQQ, KBR, QQQ, FOXA, NIO, VOD.NEWS8: Pre-Market Most Active for Dec 21, 2018 :  NVS, AFL, NBR, GNW, AMD, SQQQ, TQQQ, KBR, QQQ, FOXA, NIO, VOD.NEWS9: Novartis (NVS) Offers to Buy French Gene Therapy Manufacturer.NEWS10: U.S body says gene therapy may be more cost effective for spinal muscular atrophy.NEWS11: U.S body says gene therapy may be more cost effective for spinal muscular atrophy.
2018-12-24: NEWS1: How Pfizer’s Sutent and Xalkori Have Performed.NEWS2: This Drug Is Expected to Be a Significant Driver for Pfizer.NEWS3: Jazz (JAZZ) Falls as Sleep Drug Gets Extended Review From FDA.NEWS4: Jazz (JAZZ) Falls as Sleep Drug Gets Extended Review From FDA.NEWS5: Jazz (JAZZ) Falls as Sleep Drug Gets Extended Review From FDA.
2018-12-26: nan

Answer: Decrease