メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((134.679650860828 34.8336909423826, 134.679083241709 34.833881169556, 134.67852385748 34.8340704546411, 134.678352429254 34.8336878129825, 134.678078684534 34.8331179819192, 134.67864882019 34.8329328229816, 134.67921176798 34.8327601483866, 134.679650860828 34.8336909423826)) ^^http://www.opengis.net/ont/geosparql#wktLiteral