メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.784011996525 35.3546574627644, 136.785257000291 35.3546452919512, 136.785294888463 35.3570530249349, 136.784254517879 35.357075205974, 136.783001290721 35.3570833262893, 136.781723783747 35.3566726247139, 136.779345143975 35.3566756915056, 136.779412684838 35.3559123237961, 136.779537574182 35.3551369577755, 136.78188991726 35.3551418248728, 136.781988738603 35.3546845361691, 136.78290943943 35.354676699737, 136.784011996525 35.3546574627644)) ^^http://www.opengis.net/ont/geosparql#wktLiteral