メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.378280309483 43.822407261811, 142.377593539833 43.8219221009685, 142.376517141294 43.8211591708747, 142.376288286915 43.821022100123, 142.377038492976 43.8204561277964, 142.378691016868 43.8192303168317, 142.378803120003 43.8193112375577, 142.378996105676 43.8194505403645, 142.379374966916 43.819717866303, 142.380203727377 43.8203365555806, 142.38065779598 43.8206499578521, 142.378280309483 43.822407261811)) ^^http://www.opengis.net/ont/geosparql#wktLiteral