メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.779350100993 35.4434878402149, 136.778284001436 35.4435336958033, 136.778248520086 35.4432260168287, 136.778230227125 35.4429768076646, 136.778534999521 35.442954400941, 136.77855072972 35.4431550818377, 136.779343485899 35.4431264499113, 136.779343855338 35.4433008155517, 136.779350100993 35.4434878402149)) ^^http://www.opengis.net/ont/geosparql#wktLiteral