メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.329267950159 35.4340553048655, 136.328049341591 35.4338348555824, 136.328210544602 35.4333573093939, 136.3244667428 35.4326641951495, 136.32468012931 35.4321651762818, 136.325279216173 35.4305956933965, 136.326421311151 35.4276373968604, 136.331050000363 35.4287288191212, 136.329267950159 35.4340553048655)) ^^http://www.opengis.net/ont/geosparql#wktLiteral