メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.700409077577 44.3660299936706, 141.699957597246 44.3663238391, 141.699914107188 44.366352141968, 141.698822379744 44.3654884603653, 141.698855767214 44.3654663318181, 141.698859810998 44.3654636440991, 141.699572398615 44.3650190788949, 141.699807527123 44.364863589973, 141.699883668212 44.3648132248677, 141.700646683031 44.3654106809239, 141.700967652583 44.3656664530582, 141.700890731402 44.3657164983004, 141.700409077577 44.3660299936706)) ^^http://www.opengis.net/ont/geosparql#wktLiteral