メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.353724313025 43.097568102739, 141.35439315873 43.0976645498435, 141.354294949503 43.098068024491, 141.354264914336 43.0981993024723, 141.354223925913 43.098351240668, 141.354120292031 43.0987842821038, 141.353642971793 43.0987222470037, 141.353251269466 43.0986660848756, 141.352771513553 43.0985935477056, 141.352924484851 43.0980224887084, 141.353056771909 43.0974744757218, 141.353724313025 43.097568102739)) ^^http://www.opengis.net/ont/geosparql#wktLiteral