メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.44854943331 36.39983812191, 136.448326945992 36.3998755252425, 136.447942099775 36.3999942400178, 136.447762383372 36.3996052648996, 136.447665444144 36.3992693847743, 136.447511660689 36.3988217120246, 136.447479771471 36.3984258223716, 136.447843368487 36.3983769938169, 136.447899653547 36.3986964328103, 136.448150611963 36.3986644491949, 136.448412277832 36.3993999490558, 136.448823330101 36.3993482025106, 136.448827340684 36.3997694444793, 136.44854943331 36.39983812191)) ^^http://www.opengis.net/ont/geosparql#wktLiteral