メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.272445002744 44.0218969846859, 144.270876324089 44.0217542765807, 144.270986002711 44.0211912096385, 144.272555405135 44.0213556044701, 144.272445002744 44.0218969846859)) ^^http://www.opengis.net/ont/geosparql#wktLiteral