メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.963917801576 43.5478894553731, 144.964294660773 43.548143598882, 144.963514944071 43.548808488968, 144.963092217869 43.5485276225452, 144.962910258125 43.5484025217565, 144.962800795687 43.5483374398928, 144.962667437997 43.548248277631, 144.963477643805 43.5475906158832, 144.963649364666 43.547711668329, 144.963917801576 43.5478894553731)) ^^http://www.opengis.net/ont/geosparql#wktLiteral