メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.327718470255 43.0397178122214, 141.328239922778 43.0400153595837, 141.327678475516 43.0406022391717, 141.327393567947 43.0409186065198, 141.327168383911 43.0411780665381, 141.327056473357 43.0413069921147, 141.326736062423 43.041643960086, 141.325985509125 43.041233435671, 141.325428232219 43.0409527495852, 141.325645082513 43.0406996263235, 141.325888691019 43.0404330749456, 141.326123970266 43.0401720110321, 141.326381274205 43.0398870020271, 141.326948531853 43.0392775297048, 141.327347800713 43.039506297127, 141.327501429083 43.0395940405775, 141.327718470255 43.0397178122214)) ^^http://www.opengis.net/ont/geosparql#wktLiteral