メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.783956304139 35.1406764935936, 136.782517175895 35.1405176268495, 136.782420258061 35.140462739888, 136.783134031019 35.139755486119, 136.783285292511 35.1396311743812, 136.784363916885 35.1399055843114, 136.784899020187 35.1400500982896, 136.784848760918 35.1402088861507, 136.784554616578 35.1401260521653, 136.784513534092 35.1403655748641, 136.784011985259 35.1403232823984, 136.783956304139 35.1406764935936)) ^^http://www.opengis.net/ont/geosparql#wktLiteral