Complex sentence: The Hikurangi Trench (also called the Hikurangi Trough) is a linear deep in the Pacific Ocean off the east coast of the North Island of New Zealand, lying between the southern end of the Cook Strait and the Chatham Rise.
Split into simpler sentences: The Hikurangi Trench lies in the Pacific Ocean off the east coast of New Zealand. It lies between the southern end of Cook Strait and the Chatham Rise.