メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.802771622711 35.4453128122909, 136.802560610811 35.4455729734228, 136.802450233226 35.4458726632099, 136.801734492579 35.4460205585348, 136.801391718831 35.446109973065, 136.801040122031 35.4461803814387, 136.799858592371 35.4464248755282, 136.800001299795 35.445076871237, 136.800075807994 35.4443107500421, 136.80105214082 35.444498400434, 136.801392972288 35.4445614765205, 136.803485362495 35.444582497476, 136.803297673016 35.4447994933447, 136.803052061833 35.4450420164522, 136.802771622711 35.4453128122909)) ^^http://www.opengis.net/ont/geosparql#wktLiteral