メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.718625993939 43.1836115811378, 141.718348080781 43.1838849266051, 141.718195281007 43.1839997683682, 141.718097731669 43.1840437627451, 141.717981826928 43.1841098243252, 141.717871658906 43.1842070712217, 141.717759504857 43.1843172468155, 141.717631371501 43.1844411347581, 141.717253246962 43.1848040334009, 141.716903796327 43.1851845774728, 141.716637680372 43.1854590289713, 141.71644173076 43.1856610855906, 141.716129586034 43.1859830004564, 141.715663129348 43.1864640434748, 141.715623374575 43.1864433219067, 141.71445509529 43.185850815281, 141.713438479372 43.1853313656104, 141.712906924047 43.185062948436, 141.713413264602 43.1846039644247, 141.713977328082 43.1840607823889, 141.714229614173 43.1838298766669, 141.713853674463 43.1836378691572, 141.714696263098 43.182784146384, 141.715455167965 43.1820296120004, 141.715526640763 43.1820662364286, 141.715918144041 43.1822640067726, 141.716727311455 43.1826912486882, 141.71686344102 43.1827530700673, 141.716983010938 43.1827904115273, 141.717066404679 43.182821394983, 141.717449509751 43.1830190520804, 141.718547668714 43.1835721124471, 141.718625993939 43.1836115811378)) ^^http://www.opengis.net/ont/geosparql#wktLiteral