what is the river whose source is bătrâna river and has it's mouth located in râul doamnei ?
SELECT DISTINCT var_uri where brack_open var_uri dbo_source dbr_Bătrâna_River_ attr_open Argeș attr_close sep_dot var_uri dbo_riverMouth dbr_Râul_Doamnei sep_dot var_uri a dbo_River brack_close