メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.820630954974 35.303643552974, 136.82137534545 35.3038264572373, 136.820896257613 35.3050886228003, 136.820380866802 35.3063692052279, 136.819574621067 35.3063640781688, 136.81931907165 35.3063596823593, 136.819160503588 35.3058845741551, 136.818946137261 35.3052387396614, 136.818774151548 35.3047283799858, 136.818400075794 35.3036121485684, 136.819131625052 35.3036262959199, 136.819905041592 35.3036322478024, 136.820630954974 35.303643552974)) ^^http://www.opengis.net/ont/geosparql#wktLiteral