メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.97407154516 43.5624984416003, 144.973316827293 43.5620081405821, 144.974047675542 43.5614206118179, 144.974800118965 43.5619291752349, 144.97407154516 43.5624984416003)) ^^http://www.opengis.net/ont/geosparql#wktLiteral