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:2021-08-02, Stock:PTR, The news for the past five days is as follows:
2021-07-26: NEWS1: PetroChina (PTR) Stock Sinks As Market Gains: What You Should Know.
2021-07-27: NEWS1: PetroChina (PTR) Dips More Than Broader Markets: What You Should Know.
2021-07-28: NEWS1: PetroChina (PTR) Sees Hammer Chart Pattern: Time to Buy?.
2021-07-29: nan
2021-07-30: NEWS1: Is PetroChina Company (PTR) Stock Outpacing Its Oils-Energy Peers This Year?.

Answer: Rise