メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.665724630497 35.2638236003586, 136.665223568553 35.2629166535229, 136.664766048803 35.2618976283564, 136.670291774806 35.2605622646325, 136.673545261114 35.2597339505767, 136.677644696607 35.2587238917221, 136.678386523095 35.2606860316002, 136.676246184484 35.2612392136887, 136.674290356593 35.2617382529694, 136.671207529158 35.262531597563, 136.665724630497 35.2638236003586)) ^^http://www.opengis.net/ont/geosparql#wktLiteral