メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.992417471397 43.5611419579853, 144.992799580546 43.561383680326, 144.991972231064 43.5621035630144, 144.99168807593 43.5616807723989, 144.991491287796 43.5613633310336, 144.992016551629 43.5608990334077, 144.992417471397 43.5611419579853)) ^^http://www.opengis.net/ont/geosparql#wktLiteral