メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.675994872051 35.3674367795047, 136.676017530507 35.3678140983587, 136.676041902615 35.3682199437467, 136.676067926262 35.3686533067382, 136.675939092048 35.3686663033744, 136.674417903314 35.3687204947698, 136.674416432756 35.3687205473555, 136.674389503892 35.3682804976795, 136.674365135617 35.367882268305, 136.674341452343 35.3674952903412, 136.674324616666 35.3672201758519, 136.674322547045 35.3671741840211, 136.674349612856 35.3671712640267, 136.675969827184 35.3670268587852, 136.675972902841 35.3670709527572, 136.675994872051 35.3674367795047)) ^^http://www.opengis.net/ont/geosparql#wktLiteral