メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.176557038838 35.3484927362653, 137.176070424257 35.348372564562, 137.17567242341 35.3482797788418, 137.17394130606 35.3478561687711, 137.173846888357 35.3474705438977, 137.173770743594 35.3471666768574, 137.175733270423 35.3470254853603, 137.176344761944 35.3469980417526, 137.176908235416 35.3469653891108, 137.176773460926 35.3475768767173, 137.176644270009 35.3481630115043, 137.176557038838 35.3484927362653)) ^^http://www.opengis.net/ont/geosparql#wktLiteral