メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.207038720276 36.6909184381025, 137.207072288029 36.6911092925947, 137.207122479524 36.6913947668902, 137.20597833824 36.6914966233948, 137.2055129231 36.6914995996345, 137.205234727964 36.691501104419, 137.205183763818 36.6910375053663, 137.205154900759 36.6907337881601, 137.205341665895 36.6907211925996, 137.205860405361 36.6906955286495, 137.206452498912 36.6906696943196, 137.206861090227 36.6906518076285, 137.20699451565 36.6906670388419, 137.207038720276 36.6909184381025)) ^^http://www.opengis.net/ont/geosparql#wktLiteral