Complex sentence: The Ailsa Craig Lighthouse, located on Ailsa Craig, an island in the Firth of Clyde, just offshore from Girvan, South Ayrshire, Scotland, was completed in 1886, the construction being overseen by Thomas and David Stevenson.
Split into simpler sentences: The Ailsa Craig Lighthouse, located on Ailsa Craig, an island in the Firth of Clyde, just offshore from Girvan, South Ayrshire, Scotland. It was completed in 1886, the construction being overseen by Thomas and David Stevenson.