メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.233944670414 35.4533266244811, 136.232512681125 35.4530088717728, 136.230375746314 35.4525639026889, 136.230393931414 35.4525002057518, 136.225473544407 35.4514184879787, 136.226099061697 35.4496541482518, 136.226730577099 35.4476902127712, 136.229445829479 35.4482272293427, 136.231555090411 35.4485853959765, 136.23525297465 35.4494384138948, 136.234586299312 35.4514026229563, 136.233944670414 35.4533266244811)) ^^http://www.opengis.net/ont/geosparql#wktLiteral