メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.690266161328 34.9194632699478, 135.690413478979 34.9199689017739, 135.68989081705 34.9199981341602, 135.688735441756 34.9200585648536, 135.688757608885 34.9198983951391, 135.688786604058 34.9196735903957, 135.688808685653 34.9194452467123, 135.688828379919 34.9193235258924, 135.688830416267 34.9190655502768, 135.688830896774 34.9190056872458, 135.68984141097 34.9190268661249, 135.690173897258 34.9190353208969, 135.690219113281 34.9192741899469, 135.690266161328 34.9194632699478)) ^^http://www.opengis.net/ont/geosparql#wktLiteral