メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((134.547635662954 34.0711115205645, 134.547042089513 34.0719217780498, 134.546707513835 34.0717640424686, 134.546217197582 34.0715987601848, 134.54671733305 34.0706372395638, 134.547260146839 34.0708939164214, 134.547635662954 34.0711115205645)) ^^http://www.opengis.net/ont/geosparql#wktLiteral