メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.378915740154 42.9735762385716, 144.378124638718 42.9746244900619, 144.377670407505 42.9753107544161, 144.37754132446 42.9752668816003, 144.377456112928 42.9751954675856, 144.377314264097 42.9751202553196, 144.377111202908 42.9749974447383, 144.37648747788 42.9746403928743, 144.376417009846 42.9744075847745, 144.376276929503 42.9739446241644, 144.37621503643 42.9737049751744, 144.377658807089 42.9736362744935, 144.378868287745 42.9735776846829, 144.378915740154 42.9735762385716)) ^^http://www.opengis.net/ont/geosparql#wktLiteral