メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.210141033986 36.7460967561709, 137.209815987021 36.7461725526225, 137.209342319626 36.74634640482, 137.208792257702 36.7465376776776, 137.208690694851 36.7454382547212, 137.208678103965 36.7444698954376, 137.208662919671 36.7435221653661, 137.209230473987 36.7433790445364, 137.209382413617 36.7433150623597, 137.209580609553 36.7435741586951, 137.210192930534 36.7437632005605, 137.210159467501 36.74391388167, 137.210100520067 36.7440501379251, 137.210114529681 36.7444602486505, 137.210122683717 36.7449542857498, 137.210134829888 36.7455575187272, 137.210141033986 36.7460967561709)) ^^http://www.opengis.net/ont/geosparql#wktLiteral