メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.193780048251 35.3666206064096, 137.193524147524 35.3669252402465, 137.193188397647 35.3673129183838, 137.192922259783 35.3676922711003, 137.192702582698 35.3675786529571, 137.191856124403 35.3675303004066, 137.19197773499 35.367086963929, 137.192113056821 35.3666101739656, 137.192254998858 35.3661308467624, 137.193780048251 35.3666206064096)) ^^http://www.opengis.net/ont/geosparql#wktLiteral