メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.212460603209 34.6605678038256, 135.206300009823 34.6580061615869, 135.205722008312 34.657766906091, 135.207089004596 34.6568375897295, 135.209591802775 34.6551360814432, 135.213560211796 34.6567909703999, 135.214532566577 34.657196645463, 135.212460603209 34.6605678038256)) ^^http://www.opengis.net/ont/geosparql#wktLiteral