メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((131.17013025922 34.0001261109186, 131.1695397433 34.000195842434, 131.169265573002 33.999638024016, 131.169218803068 33.999587635149, 131.169530876331 33.9993691414235, 131.169581818201 33.9993302515567, 131.169642470358 33.9992780584072, 131.169835362038 33.9998004214897, 131.169952386023 33.9997803809969, 131.17013025922 34.0001261109186)) ^^http://www.opengis.net/ont/geosparql#wktLiteral