メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.945941250835 43.5522718650784, 144.945606399799 43.5521607172792, 144.944635911834 43.5518233366594, 144.943720653967 43.5515317932175, 144.942756355694 43.5511897150234, 144.942835139118 43.551126505186, 144.944724548089 43.5496100113921, 144.944739812326 43.5496184063804, 144.944948087515 43.5495149772856, 144.945546765338 43.5499230444928, 144.946309395706 43.5505383711475, 144.946591311586 43.5507850743697, 144.947412584374 43.5509767832482, 144.947556633543 43.5510069234077, 144.946008887724 43.5522189367068, 144.945941250835 43.5522718650784)) ^^http://www.opengis.net/ont/geosparql#wktLiteral