メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.052452758963 35.0012006393772, 137.051885222385 35.0019745456585, 137.051629503772 35.0023718057522, 137.050959460512 35.0022240499569, 137.049942743064 35.0019999685588, 137.050271918265 35.0008148954963, 137.050900449593 35.0009248653831, 137.051039339019 35.0003741031198, 137.051424626648 35.0004465842281, 137.05280329455 35.0006751433244, 137.052452758963 35.0012006393772)) ^^http://www.opengis.net/ont/geosparql#wktLiteral