メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.702380987149 43.00742419842, 141.702563931793 43.0076940214974, 141.702729991393 43.0079390068141, 141.702892356407 43.0081630859002, 141.703083883179 43.0084273928547, 141.701940959392 43.0088519961453, 141.701236387482 43.0091011768467, 141.701189276582 43.0091183929131, 141.699981526991 43.0095610224432, 141.699286412802 43.008570576658, 141.698904828811 43.008015159962, 141.700812066646 43.0073092071901, 141.700927927858 43.0072658768606, 141.701685477121 43.006989382305, 141.701906361148 43.0069087867603, 141.702009036766 43.0068715812964, 141.702380987149 43.00742419842)) ^^http://www.opengis.net/ont/geosparql#wktLiteral