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:2021-04-19, Stock:RIO, The news for the past five days is as follows:
2021-04-12: NEWS1: Stocks & ETFs to Play the Robust Basic Materials Sector.NEWS2: Should Value Investors Buy Rio Tinto (RIO) Stock?.
2021-04-13: NEWS1: 'Deeds, not words': mining firms reshape boardrooms as investors demand sustainability.
2021-04-14: nan
2021-04-15: NEWS1: 4 Stocks to Watch as Copper Trends Above $4 Per Pound.
2021-04-16: NEWS1: The Zacks Analyst Blog Highlights: BHP Group, Rio Tinto, Southern Copper and Freeport-McMoRan.

Answer: Rise