Complex sentence: She has contributed a chapter to book on matriarchy by Heide Göttner-Abendroth under the title, "Khasi matrilineal society-Challenges in the 21st century" an is working on a book, "When Hens Crow".
Split into simpler sentences: She has contributed a chapter to book on matriarchy by Heide Göttner-Abendroth under the title, "Khasi matrilineal society-Challenges in the 21st century". She is working on a book, "When Hens Crow".