メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.187569547561 36.2279052221487, 137.188032389594 36.2282764413051, 137.188506344023 36.2286674935204, 137.188931366378 36.2290206709941, 137.189198774463 36.2292310485642, 137.189398382078 36.2293593722055, 137.189240068054 36.2295893825683, 137.188793760224 36.230217925664, 137.188140790582 36.2311223399127, 137.187912368883 36.2309806748027, 137.187644842407 36.2307623738816, 137.187199292213 36.2303698871481, 137.186780374862 36.230023197178, 137.186513350383 36.2298177804645, 137.186289719512 36.2296168446118, 137.185853584466 36.2292456150639, 137.185413008685 36.2288653560281, 137.184925716779 36.2284761080879, 137.186626109926 36.2271573799634, 137.18713009104 36.2275439090199, 137.187569547561 36.2279052221487)) ^^http://www.opengis.net/ont/geosparql#wktLiteral