メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.452690372478 36.3365614926747, 139.451593419911 36.3365926907123, 139.451522272874 36.3358382586647, 139.451358702414 36.3357761221572, 139.451300857141 36.3355459284718, 139.451972174177 36.335357157718, 139.452018814443 36.3356914217404, 139.452493824832 36.3356148548455, 139.452690372478 36.3365614926747)) ^^http://www.opengis.net/ont/geosparql#wktLiteral