メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.474748212038 42.9686779266153, 141.474778517841 42.9687468447057, 141.47482541212 42.9689468278412, 141.474849643653 42.9690493219277, 141.474954216563 42.9694909993807, 141.474980315017 42.9696012429462, 141.475059456162 42.9699865546912, 141.475175686701 42.9704421654884, 141.474639893464 42.970087947517, 141.473481212373 42.9692778498777, 141.473167887468 42.9690587589124, 141.472443848958 42.9685525399983, 141.471933858057 42.9682173352996, 141.47310598649 42.9667617859085, 141.473119133225 42.9667748858906, 141.473632461791 42.9673381884806, 141.474213104101 42.9679753685116, 141.474611743069 42.9684498386822, 141.474716046106 42.9686047774923, 141.474748212038 42.9686779266153)) ^^http://www.opengis.net/ont/geosparql#wktLiteral