メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((134.202223800748 35.5166544664514, 134.195544114951 35.5169367110351, 134.195397804279 35.5141159670996, 134.197375593772 35.5138948928454, 134.197426161497 35.5138898430111, 134.20199082576 35.5133730028303, 134.202025123314 35.5137244378847, 134.202223800748 35.5166544664514)) ^^http://www.opengis.net/ont/geosparql#wktLiteral