Complex sentence: She then changed her hairstyle and set up a political think tank-the Savantas Policy Institute, giving rise to media speculation that she was planning to run for the office of Chief Executive sometime in the future.
Split into simpler sentences: She then changed her hairstyle and set up a political think tank-the Savantas Policy Institute. This gave rise to media speculation that she may be planning to run for the office of Chief Executive sometime in the future.