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:2018-09-11, Stock:PTR, The news for the past five days is as follows:
2018-09-04: NEWS1: China Bourse May Turn Lower Again On Wednesday.NEWS2: China Bourse May Turn Lower Again On Wednesday.NEWS3: China state oil firms clash over ownership rights - Global Times.
2018-09-05: NEWS1: China Shares Tipped To Open Under Pressure.NEWS2: China Shares Tipped To Open Under Pressure.
2018-09-06: NEWS1: China Stock Market Draws Negative Lead.NEWS2: China Stock Market Draws Negative Lead.
2018-09-07: nan
2018-09-10: NEWS1: Mild Upside Seen For China Stock Market.NEWS2: Mild Upside Seen For China Stock Market.

Answer: Decrease