メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.874652361076 43.0171842104237, 142.874247176951 43.0169384362585, 142.874133812773 43.0168694972742, 142.874079811866 43.0168088160558, 142.874043735846 43.0167482479478, 142.874677159822 43.0162278104658, 142.874878384149 43.0160530713931, 142.875469877081 43.0164209047191, 142.875512872091 43.0164453550177, 142.875493504372 43.0164633244661, 142.875414760549 43.0165287384314, 142.874944677393 43.0169188845999, 142.874841493413 43.0170124918407, 142.874764044523 43.0170828206419, 142.874652361076 43.0171842104237)) ^^http://www.opengis.net/ont/geosparql#wktLiteral