メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.277680465013 42.4933340208508, 143.277514333545 42.493380385646, 143.276990574876 42.4935609229211, 143.276320435976 42.4936357158781, 143.276188748162 42.4936496967335, 143.275545392326 42.4937177738594, 143.275311716585 42.4937427948729, 143.274497037294 42.4926246959797, 143.275294021751 42.4923273585537, 143.274980785117 42.4918446982967, 143.276307811319 42.4913166893243, 143.277334479799 42.4909152918386, 143.278008924255 42.491854004968, 143.278468598214 42.4925199073554, 143.278827077124 42.4930764286996, 143.278699354296 42.4931059909321, 143.277680465013 42.4933340208508)) ^^http://www.opengis.net/ont/geosparql#wktLiteral