what is the base currency of the southern sudan autonomous region which can be used in southern sudan autonomous region ?
SELECT DISTINCT var_uri where brack_open dbr_Southern_Sudan_Autonomous_Region_ attr_open 1972–83 attr_close dbp_currency var_uri sep_dot dbr_Southern_Sudan_Autonomous_Region_ attr_open 1972–83 attr_close dbp_currency var_uri brack_close