メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.514134286645 34.721643579238, 136.51456721429 34.7224203571975, 136.514742592588 34.7227301850759, 136.514731409352 34.7227355848765, 136.514732789601 34.7227447338842, 136.513088576417 34.7234818081991, 136.512683408813 34.7228066003312, 136.512594768919 34.7225493626426, 136.512566237696 34.7224806084619, 136.512543122374 34.7223363374866, 136.512372217639 34.7213576037552, 136.512962506763 34.7212296304608, 136.513651942127 34.7210801087742, 136.514144187292 34.7209733877414, 136.514134286645 34.721643579238)) ^^http://www.opengis.net/ont/geosparql#wktLiteral