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:2020-07-28, Stock:PTR, The news for the past five days is as follows:
2020-07-21: nan
2020-07-22: nan
2020-07-23: nan
2020-07-24: NEWS1: China Oil Giants Get Premiums in $56 Billion Pipeline Accord.NEWS2: PipeChina to take on $56 billion of pipelines to boost network access.
2020-07-27: nan

Answer: Decrease