メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.098707795901 36.6974381727934, 137.098099416154 36.697783591163, 137.097656716467 36.6980396163734, 137.096652993442 36.6986139019363, 137.096170830755 36.6980267896865, 137.096431963983 36.6978059369428, 137.097138226156 36.6972489395806, 137.097231596027 36.6971716871321, 137.0973682729 36.6970291246456, 137.098571934464 36.6966378621372, 137.099411249894 36.6969812812835, 137.099177201346 36.6971542790725, 137.098806536881 36.6973914096027, 137.098707795901 36.6974381727934)) ^^http://www.opengis.net/ont/geosparql#wktLiteral