メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.240099628088 35.2375039561067, 136.239628689862 35.2376616421562, 136.239602170609 35.2376049317256, 136.239578896436 35.2375427919445, 136.239543671238 35.2374742681259, 136.239702225066 35.2374265629523, 136.239888800227 35.2373771828828, 136.240041812682 35.237343220475, 136.240099628088 35.2375039561067)) ^^http://www.opengis.net/ont/geosparql#wktLiteral