メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.796388573496 34.7431802922549, 135.796309463884 34.7430738105484, 135.796361703613 34.7426738526385, 135.796489933949 34.7423043061896, 135.796456095789 34.7419425192678, 135.798265257345 34.7418826909629, 135.798295072999 34.7421299513477, 135.798304767894 34.7423618248995, 135.798253931407 34.742854894905, 135.798151114317 34.7428830380047, 135.797597982325 34.7429118453402, 135.797577274919 34.742971113284, 135.79706866683 34.7430056266701, 135.797055054577 34.7429632051999, 135.79690087805 34.7429968968916, 135.796388573496 34.7431802922549)) ^^http://www.opengis.net/ont/geosparql#wktLiteral