メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.33151670302 43.7577007675475, 142.332162125088 43.7578972054179, 142.332284420669 43.7579340365176, 142.332086217766 43.7582602745264, 142.331628919727 43.7590629284924, 142.331292609328 43.7589573347614, 142.330840810581 43.7588198434138, 142.330777972968 43.7588038892147, 142.330229673254 43.7586233211585, 142.330425821753 43.7582811420706, 142.33045461075 43.7582257444325, 142.33064093441 43.7579081314048, 142.330872987252 43.7575031122528, 142.331355352254 43.7576455218939, 142.33151670302 43.7577007675475)) ^^http://www.opengis.net/ont/geosparql#wktLiteral