メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.385714057867 43.0335696673179, 141.384564043262 43.0335589434252, 141.384559657189 43.0341989171473, 141.384546179133 43.0346601831679, 141.384114104396 43.034938239216, 141.383275096107 43.0341831548937, 141.383423645889 43.0341800588821, 141.3834348941 43.0335437939554, 141.383427235323 43.033427128304, 141.383466165856 43.0333175669342, 141.383533035244 43.0332186956311, 141.383608868765 43.0331437347018, 141.383741306591 43.0330384671752, 141.383972292253 43.0329064452641, 141.384918666021 43.0326030879362, 141.385714057867 43.0335696673179)) ^^http://www.opengis.net/ont/geosparql#wktLiteral