メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.356740818658 44.3532601022573, 143.356374340436 44.3533819575269, 143.356343273279 44.3533923135425, 143.356001601719 44.3534993019745, 143.35562183393 44.3536182234955, 143.355234363123 44.3522584145581, 143.355977092131 44.3521492308177, 143.3560132815 44.3521455412044, 143.35676709626 44.3520684854075, 143.356896155499 44.3525316581507, 143.356908333787 44.35257474811, 143.356961661649 44.3526120246352, 143.3570970048 44.3531381367984, 143.357099603538 44.3531407828514, 143.356740818658 44.3532601022573)) ^^http://www.opengis.net/ont/geosparql#wktLiteral