メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.989089963058 43.54867615555, 144.988302224437 43.5493031593377, 144.986526869397 43.5481778213662, 144.987350638567 43.5475223311571, 144.987423531732 43.5475777526654, 144.98749107069 43.5476217355429, 144.987898498104 43.5478869160139, 144.988400565004 43.5482137100756, 144.989089963058 43.54867615555)) ^^http://www.opengis.net/ont/geosparql#wktLiteral