メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.841443121077 43.8032546970133, 143.841952189172 43.8032770811459, 143.842434916974 43.8032983037682, 143.842234703671 43.8048276821465, 143.841756183866 43.804797279528, 143.841321297704 43.8047716610997, 143.841290728578 43.8049877554367, 143.839978558629 43.8049101546964, 143.840003093652 43.8046859673379, 143.840038024817 43.8043817178175, 143.838797357052 43.8042903947922, 143.838810871203 43.8041885755201, 143.838974132125 43.8031294521034, 143.839232421267 43.8031449676583, 143.839322252018 43.8031492728219, 143.839848650792 43.8031845925981, 143.841443121077 43.8032546970133)) ^^http://www.opengis.net/ont/geosparql#wktLiteral