メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.174908541781 35.3507808757489, 137.173905196629 35.3505394619912, 137.174174635772 35.3496725500832, 137.174209140926 35.3493204376636, 137.174200801197 35.3489310044482, 137.174074995853 35.3484022840273, 137.17394130606 35.3478561687711, 137.17567242341 35.3482797788418, 137.17543142124 35.349120003985, 137.175214478401 35.3498170575499, 137.174908541781 35.3507808757489)) ^^http://www.opengis.net/ont/geosparql#wktLiteral