メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.867175999342 35.1280764760262, 136.868601957381 35.1281588889557, 136.868590444285 35.128431199617, 136.86856929649 35.1289309671133, 136.868547591697 35.1294441199741, 136.868292393747 35.1294405068465, 136.868283329275 35.1297057305823, 136.867155016693 35.1296777924403, 136.866105452056 35.1296327146019, 136.866186877667 35.1292555682437, 136.866273992441 35.1288521673042, 136.866356520654 35.1284719245039, 136.866364448627 35.1284256736993, 136.8664298359 35.1280444056954, 136.867113016053 35.1280769531619, 136.867175999342 35.1280764760262)) ^^http://www.opengis.net/ont/geosparql#wktLiteral