メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((145.131248097462 43.6626718083677, 145.131124790051 43.6626334323951, 145.13019111058 43.6623359186982, 145.130166503426 43.6623277151846, 145.130589926664 43.661427535059, 145.130648652937 43.6613026432668, 145.130881341772 43.6607890355761, 145.131506448875 43.6608367200767, 145.131923709371 43.6608807540017, 145.132683709772 43.6609903532282, 145.132085955226 43.662230222519, 145.132036904605 43.6623589480802, 145.131863273245 43.6624550271938, 145.131626627438 43.6625580765573, 145.131429065208 43.6626197046555, 145.131248097462 43.6626718083677)) ^^http://www.opengis.net/ont/geosparql#wktLiteral