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:2019-01-31, Stock:PTR, The news for the past five days is as follows:
2019-01-24: NEWS1: China Bourse May Spin Its Wheels On Friday.NEWS2: China Bourse May Spin Its Wheels On Friday.NEWS3: Dorchester Minerals, L.P. (DMLP) Ex-Dividend Date Scheduled for January 25, 2019.NEWS4: Dorchester Minerals, L.P. (DMLP) Ex-Dividend Date Scheduled for January 25, 2019.NEWS5: ONEOK, Inc. (OKE) Ex-Dividend Date Scheduled for January 25, 2019.NEWS6: ONEOK, Inc. (OKE) Ex-Dividend Date Scheduled for January 25, 2019.
2019-01-25: NEWS1: What’s the Forecast for Total Stock ahead of Its Q4 Results?.
2019-01-28: NEWS1: Soft Start Predicted For China Stock Market.NEWS2: Soft Start Predicted For China Stock Market.NEWS3: VOC Energy Trust (VOC) Ex-Dividend Date Scheduled for January 29, 2019.NEWS4: VOC Energy Trust (VOC) Ex-Dividend Date Scheduled for January 29, 2019.NEWS5: Suncor: Analysts’ Recommendations.NEWS6: Suncor’s Stock Price Range Forecast until Its Q4 Earnings.
2019-01-29: NEWS1: Oil & Gas Stock Roundup: Halliburton's Q4, Eni's ADNOC Deal & More.NEWS2: Oil & Gas Stock Roundup: Halliburton's Q4, Eni's ADNOC Deal & More.NEWS3: China Bourse Expected To Open Under Pressure.NEWS4: China Bourse Expected To Open Under Pressure.NEWS5: Oil & Gas Stock Roundup: Halliburton's Q4, Eni's ADNOC Deal & More.NEWS6: Vermilion Energy Inc. (VET) Ex-Dividend Date Scheduled for January 30, 2019.NEWS7: Vermilion Energy Inc. (VET) Ex-Dividend Date Scheduled for January 30, 2019.NEWS8: San Juan Basin Royalty Trust (SJT) Ex-Dividend Date Scheduled for January 30, 2019.NEWS9: San Juan Basin Royalty Trust (SJT) Ex-Dividend Date Scheduled for January 30, 2019.NEWS10: Cross Timbers Royalty Trust (CRT) Ex-Dividend Date Scheduled for January 30, 2019.NEWS11: Cross Timbers Royalty Trust (CRT) Ex-Dividend Date Scheduled for January 30, 2019.NEWS12: PermRock Royalty Trust (PRT) Ex-Dividend Date Scheduled for January 30, 2019.NEWS13: PermRock Royalty Trust (PRT) Ex-Dividend Date Scheduled for January 30, 2019.NEWS14: Permian Basin Royalty Trust (PBT) Ex-Dividend Date Scheduled for January 30, 2019.NEWS15: Permian Basin Royalty Trust (PBT) Ex-Dividend Date Scheduled for January 30, 2019.NEWS16: Mesa Royalty Trust (MTR) Ex-Dividend Date Scheduled for January 30, 2019.NEWS17: Mesa Royalty Trust (MTR) Ex-Dividend Date Scheduled for January 30, 2019.NEWS18: Enerplus Corporation (ERF) Ex-Dividend Date Scheduled for January 30, 2019.NEWS19: Enerplus Corporation (ERF) Ex-Dividend Date Scheduled for January 30, 2019.NEWS20: Permianville Royalty Trust (PVL) Ex-Dividend Date Scheduled for January 30, 2019.NEWS21: Permianville Royalty Trust (PVL) Ex-Dividend Date Scheduled for January 30, 2019.NEWS22: Suncor’s Short Interest before Its Q4 Earnings.
2019-01-30: NEWS1: Higher Open Predicted For China Stock Market.NEWS2: Higher Open Predicted For China Stock Market.NEWS3: The Zacks Analyst Blog Highlights: Halliburton, Eni, RPC and PetroChina.

Answer: Decrease