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:2021-06-22, Stock:RIO, The news for the past five days is as follows:
2021-06-15: NEWS1: Rio Tinto and ARENA to study using hydrogen to reduce carbon emissions in alumina refining.NEWS2: Rio Tinto Stock Near Buy Zone; Showing Rising Relative Strength After Shares Climb 150%.
2021-06-16: NEWS1: Where Do Hedge Funds Stand On Caterpillar Inc. (CAT)?.NEWS2: Mining stocks fall as China plans metal reserves to curb commodity rallies.
2021-06-17: NEWS1: Rio Tinto opens new scandium plant in Canada.NEWS2: Rio Tinto confirms Peter Cunningham as Chief Financial Officer.NEWS3: CORRECTED-Alcoa details plans to cut carbon emissions from making alumina.
2021-06-18: NEWS1: Investors Look to Small Cap Mining Stocks as Materials Sector Surges due to Rebounding Economies.
2021-06-21: NEWS1: Rio Tinto to deploy world’s first fully autonomous water trucks at Gudai-Darri.NEWS2: 10 Best Copper Stocks to Buy Now.NEWS3: Rio Tinto stock falls amid iron ore weakness, as mining giants drag London stocks lower.NEWS4: 4 Copper Stocks to Watch Even as the Metal Drops.

Answer: Rise