Complex sentence: Whilst staying at home to look after her two children (a son and a daughter), Green studied for a degree from the Open University, and then spent two full-time years studying at the LSE for an MSc (Econ) in Comparative Government.
Split into simpler sentences: Whilst staying at home to look after her two children (a son and a daughter), Green studied for a degree from the Open University. She then spent two full-time years studying at the LSE for an MSc (Econ) in Comparative Government.