メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.371127058076 43.0538378709499, 141.371202203572 43.0537937888881, 141.371539585162 43.0540831838837, 141.371883833547 43.0543822645121, 141.371851717679 43.0544015700716, 141.371238881186 43.0547990133486, 141.371097165555 43.0548909009224, 141.370646750105 43.0551829667326, 141.370515231004 43.0552457458429, 141.36981482835 43.0546288433832, 141.369915448254 43.0545673047297, 141.370351695325 43.0543002409613, 141.370640010219 43.0541236779609, 141.370888660556 43.0539777546883, 141.370993014203 43.0539165255391, 141.371127058076 43.0538378709499)) ^^http://www.opengis.net/ont/geosparql#wktLiteral