メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.773194914884 35.1463885159919, 136.771914721655 35.1466677260728, 136.771494680064 35.1458051547821, 136.771500191725 35.145712213902, 136.771327513393 35.145263339219, 136.771236025043 35.1447543032392, 136.772110824614 35.144398611653, 136.772236102341 35.1445976872349, 136.7726364098 35.1444737092923, 136.773454190844 35.1461137229269, 136.773164516115 35.1461948224555, 136.773194914884 35.1463885159919)) ^^http://www.opengis.net/ont/geosparql#wktLiteral