メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.735448787905 35.4233532722061, 136.735795973267 35.4243125423819, 136.735985545931 35.42480517498, 136.734343734847 35.4252089700517, 136.732632680112 35.4256331972683, 136.732435169223 35.4251329615151, 136.732238563639 35.4246565664235, 136.732059597152 35.4241963249722, 136.731900613133 35.4237240425145, 136.73276067758 35.4235167954221, 136.733616178767 35.4232934696689, 136.734173750546 35.4231524472237, 136.735276546353 35.4228869330314, 136.735448787905 35.4233532722061)) ^^http://www.opengis.net/ont/geosparql#wktLiteral