メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.233525439782 35.9378214439489, 140.231208157057 35.9388996505645, 140.229537324213 35.9365761701172, 140.235746024239 35.9337099839365, 140.235917589538 35.934009404101, 140.236309770199 35.9346080665666, 140.23732513873 35.936048597404, 140.233525439782 35.9378214439489)) ^^http://www.opengis.net/ont/geosparql#wktLiteral