メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.930986862404 35.090930069688, 136.931039522103 35.0909422149559, 136.93145420599 35.0910759182305, 136.93104677081 35.0918508151429, 136.930593798775 35.0916892170606, 136.930553828122 35.0917650601741, 136.930220209523 35.0916423576912, 136.930668114814 35.09081359518, 136.930986862404 35.090930069688)) ^^http://www.opengis.net/ont/geosparql#wktLiteral