メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.357649222526 45.1241682606028, 142.356612824975 45.1240303945076, 142.355642971251 45.1239068693395, 142.355360542388 45.1238769749547, 142.354971532968 45.1238282652568, 142.354140619856 45.1237178854874, 142.354466268809 45.1222670535644, 142.355349791389 45.1223815285408, 142.35603454644 45.1224732654967, 142.357065671353 45.1226024237298, 142.357975950901 45.1226963944957, 142.358013372786 45.1227002263569, 142.357895086736 45.1232068860244, 142.357701817244 45.123962638351, 142.357649222526 45.1241682606028)) ^^http://www.opengis.net/ont/geosparql#wktLiteral