メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.555539989441 35.3758496802643, 136.553543034088 35.376128404923, 136.553145541721 35.3751613462522, 136.555599401371 35.3752328804196, 136.555539989441 35.3758496802643)) ^^http://www.opengis.net/ont/geosparql#wktLiteral