メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.877894033528 35.2351698045646, 136.877176994174 35.2351801965927, 136.876277505399 35.2351931725176, 136.87429907163 35.2352143725986, 136.874268133581 35.23355727799, 136.874285005809 35.2335556287671, 136.876260226055 35.2335404777718, 136.878212228261 35.2335253101514, 136.878228562638 35.2351649722754, 136.877894033528 35.2351698045646)) ^^http://www.opengis.net/ont/geosparql#wktLiteral