メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.055291560983 42.9162962427073, 143.055944044998 42.916339059487, 143.055869562573 42.9169087831057, 143.055825100985 42.9172271382544, 143.055819061623 42.9172702947651, 143.055791933202 42.9174649546889, 143.055787296377 42.9174982543604, 143.055085569887 42.9174521245939, 143.05427780433 42.9173974513588, 143.054433625233 42.9162528948699, 143.055291560983 42.9162962427073)) ^^http://www.opengis.net/ont/geosparql#wktLiteral