メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.230416697055 36.14080759032, 136.230912140402 36.1444197589142, 136.229370935823 36.1444295369264, 136.229104130628 36.1444271142855, 136.228969614629 36.1444347717096, 136.228745926558 36.1444447382003, 136.227129031885 36.1445498827128, 136.226944515058 36.1436623058043, 136.224635926399 36.1438101225762, 136.224824329867 36.1416855172749, 136.224915506948 36.1406916085827, 136.230251533413 36.1398383982389, 136.230416697055 36.14080759032)) ^^http://www.opengis.net/ont/geosparql#wktLiteral