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:2021-07-19, Stock:NVS, The news for the past five days is as follows:
2021-07-12: NEWS1: Celldex Stock Surges As It Touts Early-Stage Skin Disease Study Win For CDX-0159.
2021-07-13: NEWS1: Cowen Initiates Coverage On Molecular Partners With Price Target Of $50.
2021-07-14: nan
2021-07-15: NEWS1: Incyte's Ruxolitinib Shows Better Outcomes Regardless Of Organs Affected In GvHD Patients.
2021-07-16: nan

Answer: Decrease