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:2021-09-30, Stock:VALE, The news for the past five days is as follows:
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.
2021-09-28: NEWS1: Vale Expects to Free All 39 Trapped Canadian Miners Tuesday.NEWS2: Vale says 35 trapped workers return to surface from Canadian mine.NEWS3: UPDATE 3-Vale says 35 trapped workers return to surface from Canadian mine.NEWS4: EMPLOYEES CONTINUE TO EXIT VALE’S TOTTEN MINE.
2021-09-29: NEWS1: With Miners Freed, Vale Returns to Rescuing ESG Credentials.NEWS2: Vale Says All Are Rescued After Being Trapped in Canadian Mine.NEWS3: ALL EMPLOYEES AT VALE’S TOTTEN MINE  SAFELY BACK ABOVE GROUND.

Answer: Decrease