メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.381513999555 43.0595713833408, 141.381952635689 43.0598549746286, 141.382138523302 43.0599699668574, 141.382605187952 43.0602592540954, 141.382255147414 43.060828100376, 141.382220036233 43.0608149637685, 141.381467427473 43.0619352342785, 141.380774848672 43.0616817841023, 141.380633288316 43.0616335177741, 141.37967518311 43.0612745187361, 141.379782231009 43.0611042908405, 141.380121494478 43.060580451224, 141.380392981577 43.060169185414, 141.380997118505 43.0592391605793, 141.381015771847 43.0592494998952, 141.381513999555 43.0595713833408)) ^^http://www.opengis.net/ont/geosparql#wktLiteral