メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.714793937037 36.0438476310592, 139.71562411028 36.0444896245149, 139.716390941354 36.045060842137, 139.716139136792 36.0459391864824, 139.715808052055 36.0460306878999, 139.715683443447 36.0458615718134, 139.715558752206 36.0457487869101, 139.715447901046 36.0456585480094, 139.715155774279 36.0455059410531, 139.713930583313 36.0448668695116, 139.711940040335 36.0438230600334, 139.713008964113 36.0424621455735, 139.713863804624 36.0431500244443, 139.714793937037 36.0438476310592)) ^^http://www.opengis.net/ont/geosparql#wktLiteral