Complex sentence: She subsequently set up Advocacy International, a UK-based consultancy that advises governments and international organisations and serves as its executive director, and has helped secure debt relief for the governments of Guyana, Nigeria, and Ethiopia.
Split into simpler sentences: She subsequently set up Advocacy International, a UK-based consultancy that advises governments and international organisations. She currently serves as its executive director, and has helped secure debt relief for the governments of Guyana, Nigeria, and Ethiopia.