メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.941783973671 35.1054976236209, 136.941826917517 35.1056822935902, 136.939908719378 35.1060667176629, 136.939835248791 35.1058819900925, 136.939597526772 35.1053757329674, 136.940380706467 35.1051523466591, 136.940988627574 35.104977288722, 136.94107844145 35.1049683734403, 136.941750675724 35.1049108351559, 136.941753552324 35.1049247140998, 136.941783973671 35.1054976236209)) ^^http://www.opengis.net/ont/geosparql#wktLiteral