メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.861720237911 35.2469713962885, 136.861714124358 35.2475612480135, 136.861701311152 35.2481296739903, 136.861687325503 35.2492743714498, 136.860332521152 35.2492736120885, 136.859202853378 35.2492661577258, 136.859182476178 35.247539041205, 136.859181794678 35.2469514963073, 136.859162530135 35.2464546093845, 136.860354755919 35.2464008835844, 136.86170389832 35.2463771915289, 136.861720237911 35.2469713962885)) ^^http://www.opengis.net/ont/geosparql#wktLiteral