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:2019-08-22, Stock:DLR, The news for the past five days is as follows:
2019-08-15: nan
2019-08-16: NEWS1: Data REIT CyrusOne shares soar after report company is exploring a sale.NEWS2: VNQ, SBAC, DLR, VTR: ETF Inflow Alert.NEWS3: VNQ, SBAC, DLR, VTR: ETF Inflow Alert.NEWS4: Iron Mountain Expands in Phoenix With New Data-Center Facility.NEWS5: Iron Mountain Expands in Phoenix With New Data-Center Facility.NEWS6: Iron Mountain Expands in Phoenix With New Data-Center Facility.
2019-08-19: nan
2019-08-20: NEWS1: Here's Why You Should Hold Digital Realty (DLR) Stock Now.NEWS2: Here's Why You Should Hold Digital Realty (DLR) Stock Now.NEWS3: Here's Why You Should Hold Digital Realty (DLR) Stock Now.
2019-08-21: NEWS1: 5 Companies Reach Yearly Highs.NEWS2: How Should Investors Feel About Digital Realty Trust, Inc.'s (NYSE:DLR) CEO Pay?.

Answer: Decrease