メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.380488189638 43.7736948461028, 142.381215364851 43.7734982839569, 142.381638292591 43.7743489086429, 142.381738760434 43.7745509736633, 142.381976068442 43.775015426962, 142.38133513168 43.775193490109, 142.380519214775 43.7754313618291, 142.380502354211 43.7754374989438, 142.38075013297 43.7758667813174, 142.379894161057 43.7761276186396, 142.379476962057 43.7753927814024, 142.379497304476 43.7753871680226, 142.378913567545 43.7743569509457, 142.378809805943 43.7741782022808, 142.379657324813 43.7739296181556, 142.380488189638 43.7736948461028)) ^^http://www.opengis.net/ont/geosparql#wktLiteral