メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.903599984535 37.0554977228824, 140.903479204702 37.0561218209548, 140.902835693365 37.0560756695925, 140.902759964908 37.0563559668629, 140.902744322813 37.0564554370844, 140.902743919993 37.0564579745414, 140.902576943283 37.0571643607775, 140.901233868469 37.05698483655, 140.900704793046 37.0569256762392, 140.900060769726 37.0568435421134, 140.900124739199 37.0562498743106, 140.8988401244 37.0561475816288, 140.89896013565 37.0551080793094, 140.900254992757 37.0552342836705, 140.901457168369 37.0553152677818, 140.903599984535 37.0554977228824)) ^^http://www.opengis.net/ont/geosparql#wktLiteral