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:2018-06-27, Stock:PTR, The news for the past five days is as follows:
2018-06-20: NEWS1: China Stock Market May Add To Its Winnings.NEWS2: China Stock Market May Add To Its Winnings.
2018-06-21: NEWS1: Losses May Accelerate For China Stock Market.NEWS2: Losses May Accelerate For China Stock Market.NEWS3: Pembina Pipeline Corp. (PBA) Ex-Dividend Date Scheduled for June 22, 2018.NEWS4: Pembina Pipeline Corp. (PBA) Ex-Dividend Date Scheduled for June 22, 2018.NEWS5: Chevron’s Stock Forecast up to September 28.
2018-06-22: nan
2018-06-25: NEWS1: More Pain Predicted For China Stock Market.NEWS2: More Pain Predicted For China Stock Market.NEWS3: 5 Chinese Stocks to Consider as China Heads Into a Bear Market.NEWS4: Did PetroChina Company Limited (HKG:857) Create Value For Investors Over The Past Year?.
2018-06-26: NEWS1: Mild Recovery Seen For China Stock Market.NEWS2: Mild Recovery Seen For China Stock Market.

Answer: Rise