メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.29268681245 43.0807804709381, 141.293332296287 43.0808258833067, 141.293324303742 43.0808400929893, 141.294447876261 43.0809293695119, 141.294537337485 43.0809329994866, 141.294511188764 43.0811152857741, 141.294460068532 43.0815215011472, 141.294383284459 43.0820787108805, 141.293634854162 43.0820197147506, 141.292822803037 43.0819613071313, 141.292779385787 43.0819582723257, 141.292534398759 43.0819420167327, 141.292091277667 43.0819012476335, 141.292173112676 43.0813968286336, 141.292240492499 43.0809394093283, 141.292271936759 43.0807501353681, 141.29268681245 43.0807804709381)) ^^http://www.opengis.net/ont/geosparql#wktLiteral