メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((131.353007189901 31.623290825398, 131.353005064287 31.6233057699546, 131.35281503901 31.6240487404911, 131.352619381318 31.6248379525888, 131.352372394659 31.6248024106574, 131.351134943856 31.6246110296529, 131.350440530863 31.6245083531732, 131.349820549288 31.6244116722805, 131.349494984606 31.6243608358901, 131.348627021499 31.6241262854416, 131.348694366904 31.6238449375074, 131.348870515723 31.6235136846465, 131.349132808762 31.6232716907864, 131.34945310424 31.6230485646536, 131.349525345099 31.6229981950139, 131.349618938497 31.6229435386275, 131.349794990708 31.6228407403369, 131.350264244875 31.6226584991722, 131.351209261064 31.6224598736837, 131.352222823919 31.6223695731355, 131.353248477921 31.6223737980673, 131.353008313303 31.623282929921, 131.353007189901 31.623290825398)) ^^http://www.opengis.net/ont/geosparql#wktLiteral