メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.396535914282 34.831008583741, 137.395620572442 34.83121532294, 137.395000492479 34.8313724843762, 137.394392623157 34.8309468780297, 137.394590114181 34.8308904481126, 137.394567998936 34.8305785516347, 137.395540563483 34.8303174822993, 137.395574292666 34.8306109036427, 137.396481028221 34.8303674167962, 137.396535914282 34.831008583741)) ^^http://www.opengis.net/ont/geosparql#wktLiteral