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:2020-10-23, Stock:RIO, The news for the past five days is as follows:
2020-10-16: NEWS1: Rio Tinto vows reform as Australian lawmaker accuses industry of cultural genocide.NEWS2: Rio’s CEO Says Miner Made Key Changes Since Heritage Blasts.
2020-10-19: nan
2020-10-20: nan
2020-10-21: NEWS1: The Argus Global Dividend Model Portfolio.
2020-10-22: nan

Answer: Decrease