メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.098539022603 39.6723056729933, 140.09789201689 39.6724025547765, 140.097302437614 39.6702453851408, 140.09770321756 39.670177486042, 140.098560848012 39.6700474563588, 140.099914029525 39.6698419852035, 140.101151334393 39.6696492781905, 140.101703301556 39.6717965544684, 140.100471194922 39.6719849007566, 140.098539022603 39.6723056729933)) ^^http://www.opengis.net/ont/geosparql#wktLiteral