メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.387531568389 43.1020783456085, 141.38802920523 43.1025852084972, 141.38818941418 43.102761666759, 141.387185050378 43.103295885922, 141.386772525834 43.1035071267756, 141.386426438261 43.1031508473967, 141.386089943121 43.1028089152114, 141.385775150876 43.1024868363033, 141.385467581545 43.1021700842914, 141.385880301797 43.1019446424729, 141.386236445331 43.1017561850997, 141.386313563742 43.1018210461369, 141.386913074943 43.1014846992987, 141.387418367947 43.1019582891587, 141.387531568389 43.1020783456085)) ^^http://www.opengis.net/ont/geosparql#wktLiteral