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:2018-12-21, Stock:WELL, The news for the past five days is as follows:
2018-12-14: nan
2018-12-17: NEWS1: Should iShares Morningstar Mid-Cap Value ETF (JKI) Be on Your Investing Radar?.
2018-12-18: NEWS1: 3 Stocks Poised for Huge Growth Over the Next Decade.NEWS2: 3 Stocks Poised for Huge Growth Over the Next Decade.NEWS3: 3 Stocks Poised for Huge Growth Over the Next Decade.
2018-12-19: nan
2018-12-20: NEWS1: Welltower Earns ENERGY STAR Certifications in 2018.

Answer: Decrease