メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.104755806849 43.8171903702619, 144.10457260816 43.8172831098747, 144.103879782449 43.8175339105123, 144.103501397124 43.8176586843655, 144.103464776886 43.8175988736621, 144.103483035032 43.8175926005564, 144.103481535291 43.8175378802552, 144.103221139707 43.8168685144331, 144.103115338987 43.816587774392, 144.102733201975 43.8160136104138, 144.10392103188 43.8156791674789, 144.1047385513 43.8171599727136, 144.104755806849 43.8171903702619)) ^^http://www.opengis.net/ont/geosparql#wktLiteral