メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.48310034907 34.2944068931676, 135.482862473702 34.2944625197071, 135.482778629044 34.2944621663143, 135.482637563763 34.2944307215923, 135.482881394258 34.2939065985582, 135.48336692437 34.2942303832689, 135.48310034907 34.2944068931676)) ^^http://www.opengis.net/ont/geosparql#wktLiteral