メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.601013157301 42.6286002211094, 141.601253427063 42.6286209944831, 141.601803745483 42.6286886788193, 141.602539584204 42.6287848407428, 141.603126897882 42.6288672165842, 141.604416251663 42.6290359832065, 141.604023715439 42.6293979715765, 141.603612607544 42.6298006490531, 141.603327828947 42.6300573163898, 141.602053984926 42.6298558478857, 141.601626017981 42.6297953283301, 141.600794211524 42.6296759680367, 141.600032294674 42.6295634698831, 141.599468353109 42.6294910574104, 141.599440533531 42.6294873819158, 141.599682897832 42.6291028950653, 141.600117995239 42.6284755740517, 141.601013157301 42.6286002211094)) ^^http://www.opengis.net/ont/geosparql#wktLiteral