メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((130.8810224643 33.8823207335718, 130.88116971774 33.8829210994043, 130.880816635711 33.8829895085483, 130.880473308027 33.8830421474715, 130.87975478398 33.8831523215201, 130.879096880428 33.8832532531256, 130.87895640265 33.8827522845287, 130.878841229341 33.8823415043671, 130.879009076581 33.8822663679822, 130.879123934725 33.8821110887718, 130.879499457951 33.8820885636718, 130.880207183295 33.8819493586193, 130.880898074636 33.8818134422361, 130.8810224643 33.8823207335718)) ^^http://www.opengis.net/ont/geosparql#wktLiteral