an Entity references as follows:
The River Wandle is a right-bank tributary of the River Thames in south London, England. With a total length of about 9 miles (14 km), the river passes through the London boroughs of Croydon, Sutton, Merton and Wandsworth, where it reaches the Thames. A short headwater – the Caterham Bourne – is partially in Surrey, the historic county of the river's catchment. Tributaries of the Wandle include The Wrythe and Norbury Brook. The name Wandle is thought to derive from a back-formation of Wandsworth (Old English "Wendlesworth" meaning "Wendle's Settlement”).