メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.696153288369 35.4409793051209, 136.69613968867 35.4415121889544, 136.695059373421 35.4416042349767, 136.694968826859 35.4410993246174, 136.694805463845 35.4402958305197, 136.695069048273 35.4402994313798, 136.695261318059 35.4402924360576, 136.695515586354 35.4402779721071, 136.695719121029 35.4403165826102, 136.696096098252 35.4403378046939, 136.69615709982 35.4403243109836, 136.696153288369 35.4409793051209)) ^^http://www.opengis.net/ont/geosparql#wktLiteral