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:2021-07-13, Stock:RIO, The news for the past five days is as follows:
2021-07-06: nan
2021-07-07: NEWS1: FTSE 100 climbs as Shell hikes investor payouts.NEWS2: Rio Tinto appoints new Chief Legal Officer & External Affairs.
2021-07-08: NEWS1: UPDATE 1-Canada's Star Diamond objects to Rio Tinto push for joint venture meeting.NEWS2: Canada's Star Diamond objects to Rio Tinto push for joint venture meeting.NEWS3: Why Rio Tinto is Trading Lower Today: All You Need to Know.NEWS4: Canada's Star Diamond objects to Rio Tinto joint venture meeting.NEWS5: Rio Tinto and POSCO sign climate MOU.
2021-07-09: NEWS1: London stocks shake off growth slip as miners rise and Philip Morris deal boosts Vectura.
2021-07-12: nan

Answer: Decrease