メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.475094727931 43.4509975405596, 142.474720280664 43.450579835748, 142.473886236061 43.449659564905, 142.474054937893 43.4494370033804, 142.47470781439 43.4484914512951, 142.475115266919 43.448942812736, 142.475409132428 43.4492374276008, 142.475582915126 43.4494858647446, 142.475857809903 43.4502762816891, 142.476023892597 43.4505744176866, 142.475094727931 43.4509975405596)) ^^http://www.opengis.net/ont/geosparql#wktLiteral