\"Groundwater Data Model\"^^ Http://Www.W3.Org/2001/Xmlschema#String
\"Hydro Data Model\"^^ Http://Www.W3.Org/2001/Xmlschema#String
\"International Hydrographic Organization (IHO) S-57 For ENC Data Model\"^^ Http://Www.W3.Org/2001/Xmlschema#String
Data Models