メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.016719542206 34.9105123825987, 137.01615158747 34.910867342812, 137.01589065563 34.9108111024228, 137.015751007448 34.9107432503772, 137.015382515315 34.9104946822888, 137.014578860847 34.9099290042672, 137.014132540712 34.9095382131039, 137.014501037207 34.9092254123105, 137.015719605497 34.9099354859352, 137.016061481908 34.9101281016261, 137.016719542206 34.9105123825987)) ^^http://www.opengis.net/ont/geosparql#wktLiteral