メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.15526435275 34.9314544641658, 137.154271141869 34.9319059726179, 137.154205775532 34.9317951746514, 137.153802360905 34.9309404310443, 137.153635343381 34.9305864188697, 137.153659415775 34.9305750117685, 137.153884631582 34.9305078438048, 137.154043916684 34.9304543327174, 137.154313725325 34.930371322413, 137.154761608654 34.9302881884372, 137.154790296993 34.9302886142255, 137.155444133274 34.931372992284, 137.15526435275 34.9314544641658)) ^^http://www.opengis.net/ont/geosparql#wktLiteral