メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.970958283842 38.3320558870414, 140.971798151529 38.332576338973, 140.971630336149 38.3329250939657, 140.971441747912 38.3333301832481, 140.971371393137 38.3334813168227, 140.971127813606 38.3337531557362, 140.971110422271 38.3337710546552, 140.969734494719 38.3329289838254, 140.969517501712 38.3328012684743, 140.96896230111 38.3324678468792, 140.969587420693 38.3317493159126, 140.969816727507 38.3318330951327, 140.970016653885 38.3315086589286, 140.970907581962 38.3320245529173, 140.970958283842 38.3320558870414)) ^^http://www.opengis.net/ont/geosparql#wktLiteral