メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.575468823005 42.9882214622672, 141.576190065032 42.9883038444768, 141.576215764778 42.9883849476327, 141.576507746493 42.9891768417135, 141.57651235233 42.9891893174015, 141.57668567765 42.9896749227829, 141.576897420569 42.990239876228, 141.576989176388 42.9905408014557, 141.576974811163 42.9911509863114, 141.576789477593 42.9910762601486, 141.576405970691 42.9909270834353, 141.575372863447 42.9905108308277, 141.575138495614 42.9904173861181, 141.574874987263 42.9903123766136, 141.57467653379 42.9902332791209, 141.574024409864 42.989969980068, 141.573585218516 42.9898111108445, 141.573378055311 42.9897577724543, 141.573520885361 42.9892079876311, 141.57352781017 42.989183693928, 141.573608146616 42.9888377133959, 141.573693705591 42.9885002736532, 141.57385734125 42.988022842465, 141.574802218322 42.9881407343346, 141.575468823005 42.9882214622672)) ^^http://www.opengis.net/ont/geosparql#wktLiteral