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:2021-09-28, Stock:VALE, The news for the past five days is as follows:
2021-09-21: NEWS1: VALE S.A. (VALE) Gains As Market Dips: What You Should Know.NEWS2: The Zacks Analyst Blog Highlights: Rio Tinto, BHP Group, Vale and Fortescue Metals Group.
2021-09-22: NEWS1: Iron ore: Why this left-for-dead metal could rocket, and 4 easy ways to buy it.
2021-09-23: nan
2021-09-24: nan
2021-09-27: NEWS1: VALE S.A. (VALE) Gains As Market Dips: What You Should Know.NEWS2: UPDATE 1-Brazil's Vale says 39 workers trapped in Canada mine; rescue underway.

Answer: Decrease