メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.944226341932 35.1056428412099, 136.944195061421 35.1056353169995, 136.944160159076 35.1056122934619, 136.943439175179 35.1057265884473, 136.941881858219 35.1059856548026, 136.941826917517 35.1056822935902, 136.943348542389 35.1054375276242, 136.94408956041 35.1053134805295, 136.944147552641 35.1053698598373, 136.944226341932 35.1056428412099)) ^^http://www.opengis.net/ont/geosparql#wktLiteral