メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.715210923127 35.3627067719397, 136.714902312564 35.3627083588127, 136.714644451457 35.3627351347935, 136.713152935503 35.3629363417891, 136.713043283298 35.3613037123898, 136.712966856142 35.3602161176042, 136.712822694259 35.3581178590078, 136.714897245677 35.3580142854576, 136.715041398487 35.3601233067669, 136.715184763628 35.3622278131131, 136.715210923127 35.3627067719397)) ^^http://www.opengis.net/ont/geosparql#wktLiteral