メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.001084089901 36.7582624439015, 137.00111354931 36.7583100792367, 137.001567176136 36.7590862391364, 137.001665803322 36.7592754854593, 137.000912390429 36.7603949823102, 137.000815950319 36.7605506602151, 136.99974940721 36.7601923635701, 136.999557923247 36.7598732940739, 136.998293626959 36.7593648145697, 136.996556656919 36.7600189821494, 136.995458087284 36.7581475274555, 136.995222440187 36.7577230518795, 136.996675283769 36.7571725106741, 136.997449823132 36.7568712081808, 136.999709739369 36.7559942753147, 137.000197421201 36.7567838644775, 137.000656944021 36.7575553175828, 137.001084089901 36.7582624439015)) ^^http://www.opengis.net/ont/geosparql#wktLiteral