メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.145845218947 36.2609749109745, 139.145501908742 36.2612161888677, 139.145500424899 36.2611523675712, 139.144528695749 36.2612151929309, 139.144220225229 36.2607342840951, 139.143207271489 36.2591551504423, 139.14512858696 36.2596709163386, 139.145066720875 36.2598506570792, 139.144801787898 36.2604644631206, 139.144698211862 36.2606514809738, 139.145845218947 36.2609749109745)) ^^http://www.opengis.net/ont/geosparql#wktLiteral