Complex sentence: On 10 May 2016, it was reported that "William P. Lawrence" sailed close to the Fiery Cross Reef; this was part of a planned series of Freedom of navigation operations (also referred to as FONOPs) in the area.
Split into simpler sentences: On 10 May 2016, it was reported that "William P. Lawrence" sailed close to the Fiery Cross Reef. This was part of a planned series of Freedom of navigation operations (also referred to as FONOPs) in the area.