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:2020-05-04, Stock:PTR, The news for the past five days is as follows:
2020-04-27: nan
2020-04-28: nan
2020-04-29: NEWS1: PetroChina Filed Annual Report on Form 20-F.
2020-04-30: NEWS1: China's Oil Dream Dims as State Giants Cut Capex by $19 Billion.NEWS2: Oil Jumps Amid Output Cuts and Early Signs of Demand Recovery.
2020-05-01: nan

Answer: Decrease