メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.432458670606 34.7803393590481, 137.432764538919 34.7812456945872, 137.432804418531 34.7813777344539, 137.433028809434 34.7829430507402, 137.43325794283 34.7844813106021, 137.433265685878 34.7845332718829, 137.432163569638 34.7847413276527, 137.431151223918 34.7849267821751, 137.430935841922 34.7840920867407, 137.430732901649 34.7833513171642, 137.430288929376 34.781710687778, 137.430039904629 34.7807802766816, 137.429922422754 34.7803342835365, 137.431076713295 34.780127825753, 137.432309931715 34.7799192139395, 137.432458670606 34.7803393590481)) ^^http://www.opengis.net/ont/geosparql#wktLiteral