Geography The district is named after two rivers - the LOCATION@1 river forms the western border with LOCATION@2 , the PERSON@1 -LRB- `` Black PERSON@2 '' -RRB- is a tributary of the LOCATION@1 and runs through the district .

Geography The district is named after two rivers : The Elbe river forms the western border with LOCATION@2 . The PERSON@1 -LRB- `` Black PERSON@2 '' -RRB- is a tributary of the LOCATION@1 and runs through the district .
