メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.965815016174 43.5503241492971, 144.965748019153 43.550937090645, 144.965729559775 43.5513737503281, 144.964465607993 43.5505839116337, 144.965248072564 43.5499540744544, 144.96562246573 43.5501873516347, 144.965808022938 43.5503191122055, 144.965815016174 43.5503241492971)) ^^http://www.opengis.net/ont/geosparql#wktLiteral