メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.756776799623 42.904680984572, 140.756069403926 42.9047280833941, 140.755308427271 42.9047634353968, 140.755300224097 42.9044534495831, 140.755149597594 42.9044549976326, 140.755117328764 42.9040441936558, 140.755100354686 42.9038398704207, 140.755224015438 42.9038337497456, 140.755994830178 42.9038025355597, 140.757404842711 42.9037230414283, 140.757450309233 42.9037220871672, 140.757530652804 42.904631532938, 140.756776799623 42.904680984572)) ^^http://www.opengis.net/ont/geosparql#wktLiteral