: HydroObjecthttp://inspire.ec.europa.eu/ont/hy# Create a prefix for http://inspire.ec.europa.eu/ont/hy# Hit Enter to save Double click to create a prefix | rdfs:isDefinedBy | : HydroObjecthttp://inspire.ec.europa.eu/featureconcept/ Create a prefix for http://inspire.ec.europa.eu/featureconcept/ Hit Enter to save Double click to create a prefix |