メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.229956276631 36.68856981843, 137.229900721762 36.688569847905, 137.229891189598 36.689409439016, 137.228982657055 36.6892860733472, 137.227889414303 36.6891432237434, 137.226869876506 36.6889922290373, 137.226878940723 36.6889369562959, 137.226936553582 36.6884834466652, 137.227093796724 36.6878133178691, 137.228099151954 36.6879193983122, 137.229327358018 36.6879839526921, 137.229361194924 36.6877283642286, 137.230000940016 36.6877819549124, 137.229956276631 36.68856981843)) ^^http://www.opengis.net/ont/geosparql#wktLiteral