メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.381323550772 43.764280365552, 142.381593086614 43.7648145210507, 142.38021294589 43.7652010619703, 142.380203165612 43.765181330713, 142.379917494728 43.764680329159, 142.379788852184 43.7647162670411, 142.379492783607 43.764171607015, 142.380272989445 43.7639378757025, 142.38101332398 43.7637160693308, 142.381323550772 43.764280365552)) ^^http://www.opengis.net/ont/geosparql#wktLiteral