メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.766660500877 35.4325064408277, 136.766392563537 35.4325082026135, 136.76636693954 35.432409251139, 136.766200256414 35.4324140549339, 136.766194602274 35.4322960491342, 136.766314593069 35.4322943299193, 136.766302570689 35.4321418682673, 136.766606392396 35.4321386738599, 136.766641730851 35.4323353311914, 136.766880364426 35.4323174176788, 136.766876223759 35.4324937676426, 136.766660500877 35.4325064408277)) ^^http://www.opengis.net/ont/geosparql#wktLiteral