メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.48005391088 43.4776963771748, 144.480846915482 43.4780736448542, 144.478576377766 43.4809690241529, 144.477641206213 43.4821509809038, 144.476015460288 43.4844092288509, 144.475609712894 43.4842272986391, 144.47382862358 43.4835330278108, 144.473725089328 43.4834750929692, 144.47388533092 43.482689659651, 144.474000057275 43.4818850691616, 144.474457230715 43.4786782758322, 144.476099398913 43.4787917415498, 144.476353979732 43.4786558714418, 144.476700321112 43.4782999980417, 144.477213015837 43.4764862797384, 144.478306920688 43.4769013320062, 144.48005391088 43.4776963771748)) ^^http://www.opengis.net/ont/geosparql#wktLiteral