メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((134.554647135568 34.0806264891025, 134.554584557709 34.0806313912737, 134.554697653734 34.080066043042, 134.556209411117 34.0796339653385, 134.556297889279 34.0798128786793, 134.555891535791 34.0799451246354, 134.555541772464 34.0800675173232, 134.555632596999 34.0804965177355, 134.555413622346 34.0805244620919, 134.554647135568 34.0806264891025)) ^^http://www.opengis.net/ont/geosparql#wktLiteral