メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.56121102478 36.5167863355701, 136.561193714014 36.516965256705, 136.561182195308 36.5172462618514, 136.55970003262 36.5172858416167, 136.558969933016 36.5172752571048, 136.558975823309 36.5170628347698, 136.558968950264 36.5168537610753, 136.559001662489 36.5164735896752, 136.560199385377 36.5164042789148, 136.561193563093 36.5163344441032, 136.56121102478 36.5167863355701)) ^^http://www.opengis.net/ont/geosparql#wktLiteral