メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.985173320983 43.5426586892059, 144.984459672221 43.5432387844612, 144.983279071301 43.5424722307319, 144.983258148137 43.5424584570454, 144.983487081225 43.5422495461869, 144.983695610059 43.5423844906364, 144.983977633734 43.5421654112352, 144.984464301198 43.5424653430527, 144.984643168001 43.5423122314235, 144.985173320983 43.5426586892059)) ^^http://www.opengis.net/ont/geosparql#wktLiteral