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:2020-09-16, Stock:VALE, The news for the past five days is as follows:
2020-09-09: nan
2020-09-10: nan
2020-09-11: nan
2020-09-14: NEWS1: 10 Biggest Mining Companies.NEWS2: Brazil miner Vale says will close manganese ferroalloys operations in Bahia.NEWS3: Brazil's miner Vale to pay creditors and reset revolving credit lines - filing.
2020-09-15: NEWS1: VALE S.A. (VALE) Upgraded to Strong Buy: Here's Why.

Answer: Decrease