Complex sentence: Zara Davis (b.13 July 1966 in Bristol, England) holds the World Women's Nautical Mile speed record for a sailing vessel which was achieved in Namibia in 2006 ratified by the WSSRC.
Split into simpler sentences: Zara Davis (b.13 July 1966 in Bristol, England) holds the World Women's Nautical Mile speed record for a sailing vessel. The record was achieved in Namibia in 2006 and ratified by the WSSRC.