メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.660218710818 35.3309329082546, 136.660452955584 35.3310845161431, 136.66068305739 35.3312668807893, 136.660056642645 35.3315687695559, 136.659674640129 35.3318238590873, 136.658278318651 35.3324505413121, 136.65809600772 35.3321007696754, 136.657981895452 35.3318111423092, 136.657894710641 35.3314483193799, 136.6584487179 35.3312070530532, 136.658836739783 35.3310493148447, 136.659169492559 35.330907398959, 136.659914053258 35.3307184710638, 136.660218710818 35.3309329082546)) ^^http://www.opengis.net/ont/geosparql#wktLiteral