メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.032659590608 43.5619893390996, 142.032151975556 43.5619318034661, 142.030397215389 43.561738944913, 142.030579216957 43.5608934466578, 142.030892290118 43.5609211533703, 142.031015840558 43.5602184928613, 142.033373793896 43.560382906613, 142.033201664515 43.5614185420787, 142.033236422602 43.5615484638133, 142.032659590608 43.5619893390996)) ^^http://www.opengis.net/ont/geosparql#wktLiteral