メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.55383920455 35.3769874877621, 136.552856915512 35.377098789371, 136.551830411674 35.3772066888455, 136.550669783724 35.3773243225925, 136.550607848484 35.3769711278143, 136.550376006625 35.3770037528061, 136.550293283716 35.3764613723092, 136.551697145276 35.3763149768365, 136.553543034088 35.376128404923, 136.55383920455 35.3769874877621)) ^^http://www.opengis.net/ont/geosparql#wktLiteral