メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.375280036322 43.8202696478967, 142.37463171801 43.8207263443518, 142.374461783468 43.8208603302196, 142.374303954692 43.8209714139386, 142.37359762029 43.8214843371782, 142.372825265611 43.8220451955281, 142.372130694285 43.8215520793167, 142.37184278434 43.8213476733578, 142.370696259411 43.8205336549496, 142.371452902707 43.819967603225, 142.372134296179 43.8194578498832, 142.372386857008 43.8192991325907, 142.373144442226 43.8187701471069, 142.373806812404 43.8192553660259, 142.374386387282 43.8196702403598, 142.375280036322 43.8202696478967)) ^^http://www.opengis.net/ont/geosparql#wktLiteral