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:2020-07-30, Stock:COST, The news for the past five days is as follows:
2020-07-23: NEWS1: 3 Stocks You Can Keep Forever.
2020-07-24: nan
2020-07-27: nan
2020-07-28: NEWS1: Best Buy joins Walmart and Target in closing for Thanksgiving.NEWS2: 3M CEO: We are seeing 'some positive signs' that business will be back.
2020-07-29: NEWS1: Here are all the big retailers saying they will now be closed on Thanksgiving.

Answer: Decrease