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:2018-09-19, Stock:NVO, The news for the past five days is as follows:
2018-09-12: NEWS1: How The Parts Add Up: PPH Headed For $69.NEWS2: How The Parts Add Up: PPH Headed For $69.
2018-09-13: nan
2018-09-14: nan
2018-09-17: nan
2018-09-18: NEWS1: Novo Nordisk lays off 400 staff in research & development unit.

Answer: Decrease