Complex sentence: Mwaungulu returned to the GDR as a member of the steering commitee of the Socialist League of Malawi (LESOMA), the most important oppositional Malawian party founded in Tanzania by Yatuta Chisiza, another exiled member of the former Malawian cabinet.
Split into simpler sentences: Mwaungulu returned to the GDR as a member of the steering commitee of the Socialist League of Malawi (LESOMA), the most important oppositional Malawian party. The party was founded in Tanzania by Yatuta Chisiza, another exiled member of the former Malawian cabinet.