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:2018-11-20, Stock:PTR, The news for the past five days is as follows:
2018-11-13: NEWS1: China Stock Market May Spin Its Wheels On Wednesday.NEWS2: China Stock Market May Spin Its Wheels On Wednesday.NEWS3: Sabine Royalty Trust (SBR) Ex-Dividend Date Scheduled for November 14, 2018.NEWS4: Sabine Royalty Trust (SBR) Ex-Dividend Date Scheduled for November 14, 2018.NEWS5: Cimarex Energy Co (XEC) Ex-Dividend Date Scheduled for November 14, 2018.NEWS6: Cimarex Energy Co (XEC) Ex-Dividend Date Scheduled for November 14, 2018.NEWS7: Southwest Gas Holdings, Inc. (SWX) Ex-Dividend Date Scheduled for November 14, 2018.NEWS8: Southwest Gas Holdings, Inc. (SWX) Ex-Dividend Date Scheduled for November 14, 2018.
2018-11-14: NEWS1: Losses May Accelerate For China Stock Market.NEWS2: Losses May Accelerate For China Stock Market.NEWS3: North European Oil Royality Trust (NRT) Ex-Dividend Date Scheduled for November 15, 2018.NEWS4: North European Oil Royality Trust (NRT) Ex-Dividend Date Scheduled for November 15, 2018.NEWS5: PetroChina (PTR) Q3 Earnings Surge in Best Quarter Since 2014.
2018-11-15: NEWS1: Chesapeake Granite Wash Trust (CHKR) Ex-Dividend Date Scheduled for November 16, 2018.NEWS2: Chesapeake Granite Wash Trust (CHKR) Ex-Dividend Date Scheduled for November 16, 2018.NEWS3: Diamondback Energy, Inc. (FANG) Ex-Dividend Date Scheduled for November 16, 2018.NEWS4: Diamondback Energy, Inc. (FANG) Ex-Dividend Date Scheduled for November 16, 2018.
2018-11-16: NEWS1: Sanchez Midstream Partners LP (SNMP) Ex-Dividend Date Scheduled for November 19, 2018.NEWS2: Sanchez Midstream Partners LP (SNMP) Ex-Dividend Date Scheduled for November 19, 2018.NEWS3: The Zacks Analyst Blog Highlights: PetroChina, NextEra, Eni, Dr Pepper and Regeneron.
2018-11-19: NEWS1: China Stock Market Tipped To Halt Winning Streak.NEWS2: China Stock Market Tipped To Halt Winning Streak.NEWS3: Marathon Oil Corporation (MRO) Ex-Dividend Date Scheduled for November 20, 2018.NEWS4: Marathon Oil Corporation (MRO) Ex-Dividend Date Scheduled for November 20, 2018.NEWS5: ECA Marcellus Trust I (ECT) Ex-Dividend Date Scheduled for November 20, 2018.NEWS6: ECA Marcellus Trust I (ECT) Ex-Dividend Date Scheduled for November 20, 2018.NEWS7: Panhandle Royalty Company (PHX) Ex-Dividend Date Scheduled for November 20, 2018.NEWS8: Panhandle Royalty Company (PHX) Ex-Dividend Date Scheduled for November 20, 2018.

Answer: Decrease