メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.748476882095 34.9532753327766, 135.748235916801 34.9535013960847, 135.748237370849 34.9535299926839, 135.748079011373 34.9535292374158, 135.746317068917 34.9535203894284, 135.745505250328 34.9535690377306, 135.745495839107 34.9515145917208, 135.748417811475 34.9515759602899, 135.748476882095 34.9532753327766)) ^^http://www.opengis.net/ont/geosparql#wktLiteral