メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.149787649885 36.763564624559, 137.149300219737 36.7637694351333, 137.148480684171 36.7624337856325, 137.150259159775 36.7616966139916, 137.151126765341 36.7613447026974, 137.151747279983 36.7624002363224, 137.151977355903 36.7627751746594, 137.151495266651 36.7629338791008, 137.150972635606 36.7631168669909, 137.150297351195 36.7633670678481, 137.149787649885 36.763564624559)) ^^http://www.opengis.net/ont/geosparql#wktLiteral