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:2018-05-21, Stock:WELL, The news for the past five days is as follows:
2018-05-14: nan
2018-05-15: NEWS1: 3 REITs With Big International Operations to Consider.NEWS2: Invesque Inc. Reports First Quarter 2018 Results.NEWS3: How to Get International Exposure Without Buying Foreign Stocks.NEWS4: 3 Top Stocks With High Dividend Yields.
2018-05-16: NEWS1: Noteworthy ETF Outflows: RWR, WELL, BXP, VTR.NEWS2: Noteworthy ETF Outflows: RWR, WELL, BXP, VTR.
2018-05-17: nan
2018-05-18: nan

Answer: Rise