メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((134.681900273879 34.8332420655569, 134.681793071532 34.832987634543, 134.681355363618 34.832086704258, 134.682500364516 34.8317310586164, 134.68335855139 34.8314535606413, 134.683749900904 34.8328030352466, 134.681900273879 34.8332420655569)) ^^http://www.opengis.net/ont/geosparql#wktLiteral