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:2018-12-31, Stock:VALE, The news for the past five days is as follows:
2018-12-21: nan
2018-12-24: nan
2018-12-26: nan
2018-12-27: nan
2018-12-28: NEWS1: Board of Brazil's Vale gives CEO Schvartsman another term.NEWS2: Factors Driving Rio Tinto’s Earnings Estimates in 2019 and Beyond.NEWS3: Analysts’ Latest Upgrades and Downgrades for Rio Tinto.NEWS4: Should Alcoa Be on Your Shopping List for 2019?.NEWS5: Board of Brazil's Vale gives CEO Schvartsman another term.

Answer: Rise