メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.386307224703 43.7523956874276, 142.386317315212 43.752465381488, 142.386357657021 43.7528514528112, 142.386383879548 43.7533576848877, 142.385549854157 43.7535968297649, 142.385417755301 43.7536325674068, 142.384266727338 43.7539706129499, 142.384186821798 43.7538081222032, 142.384168675244 43.7537675147076, 142.384156528318 43.7537421077163, 142.384088226938 43.7535191443288, 142.383951142281 43.7526523959875, 142.384459129888 43.7525037952526, 142.386278667048 43.7519640703438, 142.386307224703 43.7523956874276)) ^^http://www.opengis.net/ont/geosparql#wktLiteral