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:2018-09-05, Stock:PTR, The news for the past five days is as follows:
2018-08-28: NEWS1: Rebound Expected For China Stock Market.NEWS2: Rebound Expected For China Stock Market.NEWS3: Enerplus Corporation (ERF) Ex-Dividend Date Scheduled for August 29, 2018.NEWS4: Enerplus Corporation (ERF) Ex-Dividend Date Scheduled for August 29, 2018.
2018-08-29: NEWS1: China Stocks Tipped To End Losing Streak.NEWS2: China Stocks Tipped To End Losing Streak.NEWS3: Cross Timbers Royalty Trust (CRT) Ex-Dividend Date Scheduled for August 30, 2018.NEWS4: Cross Timbers Royalty Trust (CRT) Ex-Dividend Date Scheduled for August 30, 2018.NEWS5: San Juan Basin Royalty Trust (SJT) Ex-Dividend Date Scheduled for August 30, 2018.NEWS6: San Juan Basin Royalty Trust (SJT) Ex-Dividend Date Scheduled for August 30, 2018.NEWS7: Vermilion Energy Inc. (VET) Ex-Dividend Date Scheduled for August 30, 2018.NEWS8: Vermilion Energy Inc. (VET) Ex-Dividend Date Scheduled for August 30, 2018.NEWS9: Enduro Royalty Trust (NDRO) Ex-Dividend Date Scheduled for August 30, 2018.NEWS10: Enduro Royalty Trust (NDRO) Ex-Dividend Date Scheduled for August 30, 2018.NEWS11: Permian Basin Royalty Trust (PBT) Ex-Dividend Date Scheduled for August 30, 2018.NEWS12: Permian Basin Royalty Trust (PBT) Ex-Dividend Date Scheduled for August 30, 2018.NEWS13: PermRock Royalty Trust (PRT) Ex-Dividend Date Scheduled for August 30, 2018.NEWS14: PermRock Royalty Trust (PRT) Ex-Dividend Date Scheduled for August 30, 2018.NEWS15: Mesa Royalty Trust (MTR) Ex-Dividend Date Scheduled for August 30, 2018.NEWS16: Mesa Royalty Trust (MTR) Ex-Dividend Date Scheduled for August 30, 2018.NEWS17: TransGlobe Energy Corporation (TGA) Ex-Dividend Date Scheduled for August 30, 2018.NEWS18: TransGlobe Energy Corporation (TGA) Ex-Dividend Date Scheduled for August 30, 2018.NEWS19: Marine Petroleum Trust (MARPS) Ex-Dividend Date Scheduled for August 30, 2018.NEWS20: Marine Petroleum Trust (MARPS) Ex-Dividend Date Scheduled for August 30, 2018.
2018-08-30: NEWS1: PetroChina second-quarter profit surges to three-year high on oil price recovery.NEWS2: PetroChina Pays Out Lucky 8s .NEWS3: Petrochina Trying To Cut Impact Of Petchem Import Duties Amid Trade War.
2018-08-31: NEWS1: [$$] Why China's Gas Guzzling Isn't a Home Run for PetroChina.NEWS2: PetroChina Reports Best Half-Year Profit in More Than Three Years.NEWS3: PetroChina Reports Best Half-Year Profit in More Than Three Years.
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.

Answer: Decrease