メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.127716445727 35.0694888725463, 137.127610243996 35.071561334536, 137.126315350622 35.0714693192739, 137.126329379699 35.0713904473173, 137.125122607012 35.0712664084452, 137.125301310935 35.0702130444081, 137.125509016947 35.0692657483409, 137.125514395315 35.0692325812514, 137.126852482102 35.0693873658642, 137.127716445727 35.0694888725463)) ^^http://www.opengis.net/ont/geosparql#wktLiteral