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:2021-04-06, Stock:RIO, The news for the past five days is as follows:
2021-03-29: NEWS1: Australian Aboriginal group opposes billionaire miner's plan to build dams.NEWS2: Rio Tinto faces backlash over former chief’s exit package.
2021-03-30: NEWS1: UPDATE 1-Turquoise Hill's Oyu Tolgoi declares force majeure on some Chinese contracts.
2021-03-31: nan
2021-04-01: NEWS1: Rio’s Next Chair Must Navigate Greening China, Restive Investors.
2021-04-05: nan

Answer: Decrease