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:2019-01-11, Stock:PTR, The news for the past five days is as follows:
2019-01-04: NEWS1: Forecasting Suncor’s Stock Price This Month.
2019-01-07: NEWS1: 5 Chinese Stocks to Avoid Now (But Buy Later).NEWS2: Higher Open Called For China Stock Market.NEWS3: Higher Open Called For China Stock Market.NEWS4: Energy Sector Update for 01/07/2019: XOM,EOG,PTR.NEWS5: Energy Sector Update for 01/07/2019: XOM,EOG,PTR.NEWS6: Energy Sector Update for 01/07/2019: XOM, PTR, CVX, COP, SLB, OXY.NEWS7: Energy Sector Update for 01/07/2019: XOM, PTR, CVX, COP, SLB, OXY.NEWS8: Why These Three Oil Company Stocks Collapsed in December.NEWS9: New Strong Sell Stocks for January 7th.NEWS10: Has Short Interest in Suncor Changed?.
2019-01-08: NEWS1: China Shares May Reverse Tuesday's Losses.NEWS2: China Shares May Reverse Tuesday's Losses.
2019-01-09: NEWS1: Continued Support Tipped For China Stock Market.NEWS2: Continued Support Tipped For China Stock Market.
2019-01-10: NEWS1: Renewed Support Tipped For China Stock Market.NEWS2: Renewed Support Tipped For China Stock Market.

Answer: Decrease