メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.17156514086 34.238759834793, 135.171556613479 34.2391544961723, 135.17106770251 34.2391461293119, 135.171040085697 34.2391432654473, 135.171058252147 34.238751630126, 135.17156514086 34.238759834793)) ^^http://www.opengis.net/ont/geosparql#wktLiteral