メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.879635818414 35.2415591741437, 136.88068414692 35.2416569503877, 136.880707958599 35.2416591901572, 136.880709059049 35.2440909982371, 136.879829245521 35.2440860199576, 136.879630401914 35.2440898426807, 136.878201571693 35.244077768166, 136.878211993452 35.2426374846358, 136.878220635908 35.2414441024428, 136.878448525479 35.2414659151321, 136.879635818414 35.2415591741437)) ^^http://www.opengis.net/ont/geosparql#wktLiteral