which river's source place is postăvarul massif and mouth in pârâul cu fagi ?
SELECT DISTINCT var_uri where brack_open var_uri dbo_sourcePlace dbr_Postăvarul_Massif sep_dot var_uri dbo_riverMouth dbr_Pârâul_cu_Fagi_ attr_open Valea_Cheii attr_close sep_dot var_uri a dbo_River brack_close