メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.33769286834 36.7662532745473, 137.337672366984 36.7662417575561, 137.337577588955 36.7661657839799, 137.337685826146 36.7660659316475, 137.337785983992 36.7661413350788, 137.33795487382 36.7659949994227, 137.337991850995 36.7660221936638, 137.338275928759 36.7658584413251, 137.338359732796 36.7657809428544, 137.338578224991 36.7658016810355, 137.338175776429 36.7660671310319, 137.338238993489 36.7661326593504, 137.337925020826 36.7664060075584, 137.33777556028 36.7662997668673, 137.33769286834 36.7662532745473)) ^^http://www.opengis.net/ont/geosparql#wktLiteral