メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.835907612563 35.3637203707074, 136.835103368422 35.3634272593649, 136.835115630605 35.3633508160633, 136.83515545091 35.363110439012, 136.835182536356 35.3629463633448, 136.835230162006 35.3626945294755, 136.835230584945 35.3626909386239, 136.836392953798 35.3628291187486, 136.836256280302 35.3634468257739, 136.835907612563 35.3637203707074)) ^^http://www.opengis.net/ont/geosparql#wktLiteral