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:2019-12-26, Stock:NVS, The news for the past five days is as follows:
2019-12-18: nan
2019-12-19: NEWS1: 4 More Biotechs With Blockbuster Potential.NEWS2: Fresh off first sickle cell drug approval, Global Blood strikes new deals.NEWS3: AbbVie's JAK Inhibitor Rinvoq Receives Approval for RA in EU.NEWS4: The Daily Biotech Pulse: Seattle Genetics' Bladder Cancer Drug Gets FDA Nod, Paratek Wins Contract For Antibiotic.NEWS5: Novartis plans to give away world's costliest therapy to some patients.
2019-12-20: NEWS1: Pharma Stock Roundup: Lilly's Upbeat 2020 Outlook, FDA Nod for PFE & MRK's Drugs.NEWS2: Novartis wins Medicaid approval for new sickle cell drug in key U.S. states.
2019-12-23: NEWS1: Pharma M&A Deals Likely To Be Smaller in 2020.
2019-12-24: NEWS1: Biotech Leading in Q4: Best ETFs & Stocks.NEWS2: Allergan (AGN) Gets FDA Approval for Migraine Drug Ubrelvy.

Answer: Decrease