メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((131.868873427879 34.0106060195076, 131.869304506352 34.0108343053545, 131.869002412829 34.0119636971738, 131.868942127389 34.0121517647373, 131.868913064966 34.0121967752452, 131.868796917162 34.0123349766209, 131.8685936642 34.012584259541, 131.867839695379 34.0121821820321, 131.867461257292 34.0119750095596, 131.867649011057 34.0117017406419, 131.867915940161 34.0113724561252, 131.868344901723 34.0108485905537, 131.86819746719 34.0105897196158, 131.868364495238 34.0105164477207, 131.868484754999 34.0103996710066, 131.868873427879 34.0106060195076)) ^^http://www.opengis.net/ont/geosparql#wktLiteral