メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.759898106979 37.3838978103894, 138.764341158475 37.3909759348407, 138.763943729717 37.3913390972355, 138.763280586557 37.3918712470349, 138.76320830084 37.3919957338398, 138.762825641757 37.3925106394769, 138.76264993444 37.3927762957524, 138.762900226498 37.3930328303411, 138.763734434176 37.3938599743247, 138.764699096935 37.3948484526218, 138.764772200205 37.3949479735455, 138.7646999507 37.395089074524, 138.764628252415 37.3953792782094, 138.763428569983 37.3954037984785, 138.761311254908 37.3939153707884, 138.759401838234 37.3926024422188, 138.758248584091 37.3915330870187, 138.754336820846 37.3880087341767, 138.754569856913 37.3878363160941, 138.754714837234 37.387695064576, 138.754911956264 37.3876117071025, 138.755150827277 37.3875862686978, 138.756502051511 37.3877325714783, 138.756553056367 37.3874588912394, 138.756500518059 37.387284840232, 138.756217180683 37.3864647538529, 138.756247948377 37.3863485266906, 138.755807742461 37.3852221293839, 138.755817595093 37.3850644155179, 138.756959464146 37.3847718760873, 138.759898106979 37.3838978103894)) ^^http://www.opengis.net/ont/geosparql#wktLiteral