メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.030844415788 35.2696397250993, 137.030892539742 35.2713287689473, 137.029772416084 35.2713519861108, 137.029745000808 35.2713525880903, 137.028507506617 35.2713841076277, 137.027310072372 35.2714146060702, 137.027280183757 35.2709695599308, 137.027270149643 35.2701459363306, 137.02725938959 35.2697364772218, 137.029115740114 35.2696864638695, 137.029684741685 35.2696669818108, 137.029676283279 35.2691363946314, 137.030175989403 35.2691454924216, 137.030838437861 35.2688418087136, 137.030841758379 35.2688835741454, 137.030841878518 35.2691334409237, 137.030844415788 35.2696397250993)) ^^http://www.opengis.net/ont/geosparql#wktLiteral