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:2019-02-21, Stock:NVO, The news for the past five days is as follows:
2019-02-13: NEWS1: Seattle Genetics' Adcetris Gets EC Nod for Label Expansion.NEWS2: Seattle Genetics' Adcetris Gets EC Nod for Label Expansion.
2019-02-14: nan
2019-02-15: nan
2019-02-19: NEWS1: Pre-Market Most Active for Feb 19, 2019 :  MT, AZN, WMT, ITUB, NVO, SBGL.NEWS2: Pre-Market Most Active for Feb 19, 2019 :  MT, AZN, WMT, ITUB, NVO, SBGL.
2019-02-20: NEWS1: Novo Nordisk Gets FDA Nod for Haemophilia Drug Esperoct.NEWS2: Novo Nordisk Gets FDA Nod for Haemophilia Drug Esperoct.NEWS3: Novo Nordisk Gets FDA Nod for Haemophilia Drug Esperoct.

Answer: Decrease