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:2018-02-09, Stock:PTR, The news for the past five days is as follows:
2018-02-02: NEWS1: Asian ADRs Move Lower in Friday Trading.NEWS2: Asian ADRs Move Lower in Friday Trading.NEWS3: BP’s Valuations ahead of 4Q17 Earnings.
2018-02-05: NEWS1: Kimbell Royalty Partners (KRP) Ex-Dividend Date Scheduled for February 06, 2018.NEWS2: Kimbell Royalty Partners (KRP) Ex-Dividend Date Scheduled for February 06, 2018.NEWS3: What’s Shell’s Price Forecast Range?.NEWS4: China's soaring natural gas output unable to meet demand set loose in pollution fight.
2018-02-06: NEWS1: Rebound Predicted For China Stock Market.NEWS2: Rebound Predicted For China Stock Market.NEWS3: Pick These 5 Bargain Stocks With Exciting EV/EBITDA Ratios.
2018-02-07: NEWS1: China Bourse May Give Up Support At 3,300 Points.NEWS2: China Bourse May Give Up Support At 3,300 Points.NEWS3: SandRidge Permian Trust (PER) Ex-Dividend Date Scheduled for February 08, 2018.NEWS4: SandRidge Permian Trust (PER) Ex-Dividend Date Scheduled for February 08, 2018.NEWS5: SandRidge Mississippian Trust I (SDT) Ex-Dividend Date Scheduled for February 08, 2018.NEWS6: SandRidge Mississippian Trust I (SDT) Ex-Dividend Date Scheduled for February 08, 2018.NEWS7: SandRidge Mississippian Trust II (SDR) Ex-Dividend Date Scheduled for February 08, 2018.NEWS8: SandRidge Mississippian Trust II (SDR) Ex-Dividend Date Scheduled for February 08, 2018.NEWS9: ExxonMobil Stock: Price Forecast after 4Q17 Earnings.NEWS10: Zacks.com featured highlights include: ArcBest, PetroChina, National General, Ingles Markets and Caleres.
2018-02-08: NEWS1: China Bourse Expected To Extend Losing Streak.NEWS2: China Bourse Expected To Extend Losing Streak.NEWS3: Noble Energy Inc. (NBL) Ex-Dividend Date Scheduled for February 09, 2018.NEWS4: Noble Energy Inc. (NBL) Ex-Dividend Date Scheduled for February 09, 2018.NEWS5: Helmerich & Payne, Inc. (HP) Ex-Dividend Date Scheduled for February 09, 2018.NEWS6: Helmerich & Payne, Inc. (HP) Ex-Dividend Date Scheduled for February 09, 2018.

Answer: Decrease