The Aar -LRB- MISC@1 Aare -RRB- , a tributary of the LOCATION@1 , is the longest river that both rises and ends entirely within LOCATION@2 .

The Aar -LRB- MISC@1 Aare -RRB- is a tributary of the Rhine and is the longest river that both comes up from and ends completely inside of SwitzerlandBridgwater , W. & PERSON@1 .
