メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.374364669419 43.7303842683496, 142.373997315367 43.7310211156933, 142.373980948342 43.7310495071388, 142.373606848738 43.7317172659988, 142.373454861389 43.7316725482651, 142.372834558963 43.7314904301811, 142.372338473862 43.7313305056934, 142.371839634545 43.731190903547, 142.371500512638 43.7310836190437, 142.372391546093 43.7305637652304, 142.372923090254 43.7302626155217, 142.37326997749 43.7300591598002, 142.373474170818 43.7299269324371, 142.373658700715 43.729764259254, 142.373759298639 43.7296565082694, 142.373915696689 43.7294369947971, 142.37407898465 43.7291616197759, 142.374442433791 43.7285010429461, 142.375135344577 43.728712658162, 142.375277003478 43.7287553289439, 142.37472151298 43.7297206043779, 142.374364669419 43.7303842683496)) ^^http://www.opengis.net/ont/geosparql#wktLiteral