メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.327753047511 39.5833578362999, 140.32807040157 39.583427973335, 140.328470860594 39.5837613328396, 140.32861628973 39.5840944242948, 140.328618401671 39.5844411952772, 140.328528806432 39.5846910474248, 140.32815233154 39.5850004302552, 140.32774055244 39.5850808655299, 140.327135897011 39.5849995941539, 140.326670806342 39.5847866580764, 140.326430853265 39.5844414258282, 140.326404254474 39.5839561291005, 140.326716286225 39.5836142985694, 140.327263386232 39.5833485606886, 140.327753047511 39.5833578362999)) ^^http://www.opengis.net/ont/geosparql#wktLiteral