メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.954377144903 35.1496156465251, 136.954654249719 35.149830287206, 136.955158161951 35.1502148308112, 136.95523243051 35.1502843268347, 136.955578949092 35.1505501430126, 136.956115707658 35.1510191058292, 136.956111519794 35.1510224086172, 136.95523800715 35.1517090767817, 136.954733892231 35.1513333360837, 136.954522585769 35.151194867935, 136.954135172194 35.1509279921837, 136.95438547899 35.1504147579826, 136.953954480345 35.1502344962569, 136.953423966405 35.1500087767087, 136.954062503461 35.1493776288404, 136.954377144903 35.1496156465251)) ^^http://www.opengis.net/ont/geosparql#wktLiteral