メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.288710008362 34.9194671937348, 137.288553366483 34.9194903121243, 137.288279098816 34.9194329746133, 137.287642404034 34.9192919078454, 137.286853171344 34.9191083788202, 137.286034550709 34.9189167032379, 137.285723909189 34.9188548196365, 137.2856131475 34.9186786438784, 137.285481181238 34.9183469108193, 137.285315500092 34.917923018376, 137.28516244868 34.9175325677433, 137.286439643818 34.9175670223086, 137.287541003262 34.9176101612471, 137.288710008362 34.9194671937348)) ^^http://www.opengis.net/ont/geosparql#wktLiteral