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:2020-11-20, Stock:PTR, The news for the past five days is as follows:
2020-11-13: NEWS1: Why Emerging Market Small-Cap Stocks Might Mean Big Profits.
2020-11-16: nan
2020-11-17: nan
2020-11-18: NEWS1: 15 Largest Energy Companies in the World.
2020-11-19: nan

Answer: Decrease