メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.88014873881 37.4399345980297, 138.87984699896 37.4399652779916, 138.880146581301 37.4395065910064, 138.880432765478 37.4392367502029, 138.88060577436 37.4390907514074, 138.881102560934 37.4386024206333, 138.881752417374 37.4390546588795, 138.882153411243 37.4393338209139, 138.881379720646 37.4400495900932, 138.880981464668 37.4397967462266, 138.880643479336 37.4401151870397, 138.880624971689 37.4401565001639, 138.880597281189 37.4400666219692, 138.88053849597 37.4399906433628, 138.880455300465 37.4398799653819, 138.88014873881 37.4399345980297)) ^^http://www.opengis.net/ont/geosparql#wktLiteral