メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.746006257083 43.1998260229502, 141.74640048557 43.200031566064, 141.745804426952 43.2006492400407, 141.745778975112 43.200675711908, 141.745426024746 43.2010430303637, 141.745056100326 43.2014280653943, 141.744922274765 43.20135897631, 141.744477921908 43.2011288746049, 141.744249801866 43.2010177348091, 141.744971738892 43.2002339454864, 141.745577843222 43.199604926386, 141.746006257083 43.1998260229502)) ^^http://www.opengis.net/ont/geosparql#wktLiteral