メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((131.187348353285 33.9553467745285, 131.188103193501 33.9561853308995, 131.188884480246 33.9569301317425, 131.187660331968 33.957738303604, 131.187597486087 33.9578304979316, 131.187571507089 33.957943692986, 131.187573216392 33.9580085076813, 131.187511658791 33.9580694381834, 131.187225646603 33.9578603626273, 131.186697036798 33.9571801104799, 131.18597921327 33.956327753366, 131.185400275708 33.9555345376405, 131.185610065487 33.9553873084176, 131.186224535392 33.9550872166778, 131.18650958209 33.9549370628367, 131.186784248119 33.9547927427664, 131.187348353285 33.9553467745285)) ^^http://www.opengis.net/ont/geosparql#wktLiteral