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:2021-06-28, Stock:RIO, The news for the past five days is as follows:
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.
2021-06-22: NEWS1: Should Value Investors Buy Rio Tinto (RIO) Stock?.NEWS2: Miners Betting on Automation to Enhance Productivity & Efficiency.
2021-06-23: NEWS1: 10 Best Nickel Stocks to Buy Now.NEWS2: Caterpillar (CAT) to Make Zero-Emission Machines for Nouveau Monde.NEWS3: Rio Tinto partners with Schneider Electric to drive decarbonisation through circular and sustainable market ecosystem.
2021-06-24: NEWS1: New Strong Buy Stocks for June 24th.NEWS2: Top Ranked Income Stocks to Buy for June 24th.NEWS3: PulteGroup, Panasonic, Caterpillar and Rio Tinto highlighted as Zacks Bull and Bear of the Day.
2021-06-25: NEWS1: Rio Tinto accused of concealing Ice Age artefacts destruction.NEWS2: Rio kept destruction of Ice Age Australia heritage secret, Aboriginal group says.

Answer: Decrease