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:2021-06-29, Stock:PTR, The news for the past five days is as follows:
2021-06-22: NEWS1: PetroChina Rides Oil Surge to Become Hong Kong’s Top Stock.
2021-06-23: NEWS1: PTR vs. E: Which Stock Should Value Investors Buy Now?.
2021-06-24: nan
2021-06-25: NEWS1: PetroChina Company's (PTR) Shares March Higher, Can It Continue?.
2021-06-28: NEWS1: Are You Looking for a Top Momentum Pick? Why PetroChina (PTR) is a Great Choice.

Answer: Decrease