メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.38830111215 43.797626964187, 142.389244524649 43.7983325907449, 142.388787167167 43.798679758796, 142.38832299827 43.799022030189, 142.387852025748 43.7993519994899, 142.387321588152 43.7997276604315, 142.387337049956 43.7997385588025, 142.386813018051 43.8001206267943, 142.3867931676 43.8001067262225, 142.386174430537 43.7996452982115, 142.385766475909 43.7993409472568, 142.385132518254 43.7988979560104, 142.385496726401 43.7986185255738, 142.386638577406 43.7977985758935, 142.386747005793 43.7977296024076, 142.387591367896 43.797099865681, 142.38830111215 43.797626964187)) ^^http://www.opengis.net/ont/geosparql#wktLiteral