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:2019-08-30, Stock:PTR, The news for the past five days is as follows:
2019-08-23: NEWS1: 4 China Stocks Getting Slammed as Trump Wages Currency War.NEWS2: 4 China Stocks Getting Slammed as Trump Wages Currency War.NEWS3: PetroChina Stock Getting Very Oversold.NEWS4: PetroChina Stock Getting Very Oversold.
2019-08-26: nan
2019-08-27: NEWS1: Energy Sector Update for 08/27/2019: PTR, PAA, TOT.NEWS2: Energy Sector Update for 08/27/2019: PTR, PAA, TOT.NEWS3: Energy Sector Update for 08/27/2019: TOT, PTR, PBR, PAA, PAGP, COP, ECA, XOM, CVX, SLB, OXY.NEWS4: Energy Sector Update for 08/27/2019: TOT, PTR, PBR, PAA, PAGP, COP, ECA, XOM, CVX, SLB, OXY.NEWS5: Exclusive: Brazil's Petrobras refineries sale lures trading companies, PetroChina, Saudi Aramco - sources.
2019-08-28: NEWS1: Cross Timbers Royalty Trust (CRT) Ex-Dividend Date Scheduled for August 29, 2019.NEWS2: Cross Timbers Royalty Trust (CRT) Ex-Dividend Date Scheduled for August 29, 2019.NEWS3: Vermilion Energy Inc. (VET) Ex-Dividend Date Scheduled for August 29, 2019.NEWS4: Vermilion Energy Inc. (VET) Ex-Dividend Date Scheduled for August 29, 2019.NEWS5: Permian Basin Royalty Trust (PBT) Ex-Dividend Date Scheduled for August 29, 2019.NEWS6: Permian Basin Royalty Trust (PBT) Ex-Dividend Date Scheduled for August 29, 2019.NEWS7: PermRock Royalty Trust (PRT) Ex-Dividend Date Scheduled for August 29, 2019.NEWS8: PermRock Royalty Trust (PRT) Ex-Dividend Date Scheduled for August 29, 2019.NEWS9: Mesa Royalty Trust (MTR) Ex-Dividend Date Scheduled for August 29, 2019.NEWS10: Mesa Royalty Trust (MTR) Ex-Dividend Date Scheduled for August 29, 2019.NEWS11: Enerplus Corporation (ERF) Ex-Dividend Date Scheduled for August 29, 2019.NEWS12: Enerplus Corporation (ERF) Ex-Dividend Date Scheduled for August 29, 2019.NEWS13: TransGlobe Energy Corporation (TGA) Ex-Dividend Date Scheduled for August 29, 2019.NEWS14: TransGlobe Energy Corporation (TGA) Ex-Dividend Date Scheduled for August 29, 2019.NEWS15: Marine Petroleum Trust (MARPS) Ex-Dividend Date Scheduled for August 29, 2019.NEWS16: Marine Petroleum Trust (MARPS) Ex-Dividend Date Scheduled for August 29, 2019.NEWS17: Permianville Royalty Trust (PVL) Ex-Dividend Date Scheduled for August 29, 2019.NEWS18: Permianville Royalty Trust (PVL) Ex-Dividend Date Scheduled for August 29, 2019.
2019-08-29: NEWS1: Pacific Coast Oil Trust (ROYT) Ex-Dividend Date Scheduled for August 30, 2019.NEWS2: Pacific Coast Oil Trust (ROYT) Ex-Dividend Date Scheduled for August 30, 2019.

Answer: Rise