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:2019-05-31, Stock:PTR, The news for the past five days is as follows:
2019-05-23: NEWS1: PetroChina raising gas prices ahead of pipeline reshuffle.NEWS2: Diamondback Energy, Inc. (FANG) Ex-Dividend Date Scheduled for May 24, 2019.NEWS3: Diamondback Energy, Inc. (FANG) Ex-Dividend Date Scheduled for May 24, 2019.NEWS4: PetroChina raising gas prices ahead of pipeline reshuffle.
2019-05-24: NEWS1: Energy Sector Update for 05/24/2019: PTR,SHLX,TOT,OXY,EMES.NEWS2: Energy Sector Update for 05/24/2019: PTR,SHLX,TOT,OXY,EMES.
2019-05-28: NEWS1: PTR Stock Crowded With Sellers.NEWS2: PTR Stock Crowded With Sellers.
2019-05-29: NEWS1: Cross Timbers Royalty Trust (CRT) Ex-Dividend Date Scheduled for May 30, 2019.NEWS2: Cross Timbers Royalty Trust (CRT) Ex-Dividend Date Scheduled for May 30, 2019.NEWS3: San Juan Basin Royalty Trust (SJT) Ex-Dividend Date Scheduled for May 30, 2019.NEWS4: San Juan Basin Royalty Trust (SJT) Ex-Dividend Date Scheduled for May 30, 2019.NEWS5: Vermilion Energy Inc. (VET) Ex-Dividend Date Scheduled for May 30, 2019.NEWS6: Vermilion Energy Inc. (VET) Ex-Dividend Date Scheduled for May 30, 2019.NEWS7: Permian Basin Royalty Trust (PBT) Ex-Dividend Date Scheduled for May 30, 2019.NEWS8: Permian Basin Royalty Trust (PBT) Ex-Dividend Date Scheduled for May 30, 2019.NEWS9: PermRock Royalty Trust (PRT) Ex-Dividend Date Scheduled for May 30, 2019.NEWS10: PermRock Royalty Trust (PRT) Ex-Dividend Date Scheduled for May 30, 2019.NEWS11: Mesa Royalty Trust (MTR) Ex-Dividend Date Scheduled for May 30, 2019.NEWS12: Mesa Royalty Trust (MTR) Ex-Dividend Date Scheduled for May 30, 2019.NEWS13: Enerplus Corporation (ERF) Ex-Dividend Date Scheduled for May 30, 2019.NEWS14: Enerplus Corporation (ERF) Ex-Dividend Date Scheduled for May 30, 2019.NEWS15: Marine Petroleum Trust (MARPS) Ex-Dividend Date Scheduled for May 30, 2019.NEWS16: Marine Petroleum Trust (MARPS) Ex-Dividend Date Scheduled for May 30, 2019.NEWS17: Permianville Royalty Trust (PVL) Ex-Dividend Date Scheduled for May 30, 2019.NEWS18: Permianville Royalty Trust (PVL) Ex-Dividend Date Scheduled for May 30, 2019.
2019-05-30: NEWS1: Pacific Coast Oil Trust (ROYT) Ex-Dividend Date Scheduled for May 31, 2019.NEWS2: Pacific Coast Oil Trust (ROYT) Ex-Dividend Date Scheduled for May 31, 2019.

Answer: Decrease