メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.367959479358 43.0535029956289, 141.367869448963 43.0535550493371, 141.367590769997 43.0537280923059, 141.366824118414 43.0542030943947, 141.366394752222 43.0538426449478, 141.366303498286 43.0537659841147, 141.365947387514 43.0534670048992, 141.366130016639 43.0533712896251, 141.366382945718 43.0532351855535, 141.36660266323 43.0531077556748, 141.366774802538 43.0530144907282, 141.366885568829 43.0529476181878, 141.367050693201 43.0528619640889, 141.367498465316 43.0526137777742, 141.368265620701 43.0533207389234, 141.367959479358 43.0535029956289)) ^^http://www.opengis.net/ont/geosparql#wktLiteral