メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.863150518389 43.3373321095501, 141.863928408545 43.3372056092785, 141.864240054474 43.3382630361592, 141.864372310425 43.3387170883338, 141.863585748748 43.3388260488634, 141.862375796061 43.3390138163341, 141.862161560327 43.3382839459634, 141.862156447652 43.3382660663985, 141.86194957031 43.3375425499699, 141.862633152653 43.3374213660239, 141.863150518389 43.3373321095501)) ^^http://www.opengis.net/ont/geosparql#wktLiteral