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:2021-06-03, Stock:RIO, The news for the past five days is as follows:
2021-05-26: nan
2021-05-27: NEWS1: Rio Tinto and Comptech partner to deliver next generation of electric vehicle and 5G giga-casting alloys.
2021-05-28: NEWS1: Iron-Ore Miners Strive to Avoid Past Mistakes as Prices Boom.
2021-06-01: nan
2021-06-02: NEWS1: 10 Best Dividend ETFs to Buy According to Reddit.NEWS2: 3 Stocks to Watch as Iron Ore Price Soars Above $200 a Ton.

Answer: Decrease