メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.188630403826 34.8027606029606, 137.187797165494 34.8029410531744, 137.187660557782 34.8029185415401, 137.187769661574 34.8022198830588, 137.18794300459 34.8011661182268, 137.188862191046 34.8011491823983, 137.189733298248 34.8011490094222, 137.189736438984 34.8011490087905, 137.189709149554 34.8012504296684, 137.188930725762 34.8020055644043, 137.188425422787 34.8024789328157, 137.188562062513 34.8026141272349, 137.188630403826 34.8027606029606)) ^^http://www.opengis.net/ont/geosparql#wktLiteral