メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.921690889435 34.7645453797494, 136.921596227843 34.764112319026, 136.921467414014 34.7635335371974, 136.92135413837 34.7632194667731, 136.921294787512 34.763066792525, 136.92116507057 34.7627931162292, 136.921010991132 34.7624900910436, 136.922714867603 34.7624843915103, 136.92272492233 34.7641999710061, 136.92179178244 34.7644895207563, 136.921800520498 34.7645285579252, 136.921690889435 34.7645453797494)) ^^http://www.opengis.net/ont/geosparql#wktLiteral