Complex sentence: "Partridge" was built in 1885 at the Camper and Nicholson boatyard in Gosport, Hampshire, England,'the oldest leisure marine company in the world'.
Split into simpler sentences: Partridge was built in 1885 at the Camper and Nicholson boatyard in Gosport, Hampshire, England. 'Camper and Nicholsons are the oldest leisure marine company in the world'.