メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.580790537943 38.9117887320342, 141.581100742129 38.9121964953251, 141.581537994802 38.9127696094401, 141.581594226282 38.9128313234737, 141.581889686991 38.9139083511803, 141.58225242651 38.915329524547, 141.582216699345 38.9153328502499, 141.581580330323 38.9154781876363, 141.580953954188 38.9156187423974, 141.580560714467 38.9141218202985, 141.580295241814 38.913067893317, 141.580206441574 38.9119895378498, 141.580172784734 38.9114308672608, 141.580157089359 38.9108798950239, 141.580498237617 38.9113915517999, 141.580790537943 38.9117887320342)) ^^http://www.opengis.net/ont/geosparql#wktLiteral