| http://www.w3.org/ns/prov#value | - These themes were: Hydrography (drainage networks including watercourses, lakes, wetlands and offshore features); Infrastructure (systems for the transportation of goods and services, i.e. roads, railways and associated structures, along with localities, built-up areas and aeronautical features so that these services may be located; and Relief (a series of spot elevations, chosen so as to give a r
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