メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.929411256515 35.1950584037419, 136.929077986043 35.1950630955854, 136.929060684782 35.1947489670864, 136.929040904826 35.1943651151809, 136.92902427721 35.1940407072502, 136.92902234805 35.1940030262637, 136.929819057537 35.1939812237626, 136.929792464436 35.1950530315022, 136.929411256515 35.1950584037419)) ^^http://www.opengis.net/ont/geosparql#wktLiteral