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:2020-03-09, Stock:RIO, The news for the past five days is as follows:
2020-03-02: nan
2020-03-03: nan
2020-03-04: NEWS1: Activist investor lashes out at Rio Tinto’s climate change strategy.NEWS2: Global aluminium producers offer Q2 premiums of $98-$105/T -sources.
2020-03-05: NEWS1: China to Approve Developing Guinea’s Giant Simandou Iron Ore Mine.NEWS2: China Gives Global Miners an African Headache.NEWS3: Activist investors tighten screws on Rio Tinto's emissions plan.
2020-03-06: nan

Answer: Decrease