OSM tag name=Clausensee matches Clausensee in these Wikidata fields:
Reservoirs in Rhineland-Palatinate | man_made=reservoir_covered, landuse=reservoir, water=reservoir |
Rivers and lakes of the Palatinate Forest | water=pond, water=lake, natural=lake, type=waterway |
Rivers and lakes of Western Palatinate | water=pond, water=lake, natural=lake, type=waterway |