メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.22920296775 34.7129742582207, 135.229884373802 34.7128903631507, 135.229695502233 34.7133447449641, 135.229536405111 34.7137763704861, 135.229421584854 34.7140115991591, 135.229266849141 34.714341776376, 135.228565557662 34.714101283688, 135.228220456508 34.7139888829116, 135.228517721868 34.7134615879988, 135.228876876368 34.7128527044804, 135.22920296775 34.7129742582207)) ^^http://www.opengis.net/ont/geosparql#wktLiteral