メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.462108388041 43.0562291410193, 144.461333163904 43.0556116188582, 144.461232109401 43.0555909283405, 144.459594391901 43.0554218076225, 144.460747952683 43.0543998836325, 144.461989160784 43.0533042370556, 144.462143436122 43.0532263542285, 144.463633174296 43.0528291479781, 144.463718237274 43.0528905137824, 144.464829672909 43.0536468030859, 144.466204625474 43.0546254810131, 144.466423721731 43.0547815087689, 144.466475487446 43.0548182706207, 144.465292051358 43.0551416430751, 144.462108388041 43.0562291410193)) ^^http://www.opengis.net/ont/geosparql#wktLiteral