Complex sentence: She has served as the Mother General of the world renowned congregation for 12 years.Usually the term is for 6 years but due to her efficiency and management skills it was again extended for another six years.
Split into simpler sentences: She has served as the Mother General of the world renowned congregation for 12 years. The term is usually for a period of 6 years but due to her efficiency and management skills it was extended for another six years.