メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.780691770495 35.4185549937166, 136.780706264841 35.4187900296472, 136.780441004373 35.41879894033, 136.779942702164 35.4188156988472, 136.779867930669 35.4188184190932, 136.778662282403 35.4188624469327, 136.778605186063 35.4188645305975, 136.778008649494 35.4188704762388, 136.776514095694 35.4189094846572, 136.775748003453 35.4189326900052, 136.775752005642 35.4187183805941, 136.775758985927 35.4185016524685, 136.776789404386 35.4184664087822, 136.777985760791 35.4184322867544, 136.780680343633 35.4183352836029, 136.780691770495 35.4185549937166)) ^^http://www.opengis.net/ont/geosparql#wktLiteral