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:2019-03-22, Stock:PTR, The news for the past five days is as follows:
2019-03-15: NEWS1: U.S. Oil Waivers That Rocked Market in 2018 Back to Focus.
2019-03-18: NEWS1: Shell (RDS.A) to Decide on LNG Canada 2nd Phase By 2025.NEWS2: Shell (RDS.A) to Decide on LNG Canada 2nd Phase By 2025.NEWS3: Shell (RDS.A) to Decide on LNG Canada 2nd Phase By 2025.NEWS4: Why BP’s Short Interest Has Dipped.
2019-03-19: NEWS1: Why BP Is Trading at a Discount to the Peer Average Valuations.
2019-03-20: NEWS1: Why Suncor Stock Is Trading at High Valuations.NEWS2: Canadian Natural Resources Limited (CNQ) Ex-Dividend Date Scheduled for March 21, 2019.NEWS3: Canadian Natural Resources Limited (CNQ) Ex-Dividend Date Scheduled for March 21, 2019.NEWS4: Chevron’s Stock Price Range Forecast until March 29.
2019-03-21: NEWS1: Day Ahead: Top 3 Things to Watch.NEWS2: Canada’s Natural Gas Crisis Is Going Under The Radar.NEWS3: Pembina Pipeline Corp. (PBA) Ex-Dividend Date Scheduled for March 22, 2019.NEWS4: Pembina Pipeline Corp. (PBA) Ex-Dividend Date Scheduled for March 22, 2019.NEWS5: Oil Retreats as Dollar Gains and Concerns Over Demand Persist.NEWS6: What’s the Forecast Range for Suncor Stock until March 29?.NEWS7: What Do Suncor’s Moving Averages Suggest?.NEWS8: Chevron: Why Has the Short Interest Fallen?.NEWS9: PetroChina plans biggest capital expenditure in four years.

Answer: Decrease