list the leaders of all the cities through which the 2014 fifa world cup qualification river flows ?
SELECT DISTINCT var_uri where brack_open dbr_2014_FIFA_World_Cup_qualification_ attr_open AFC–CONMEBOL_play-off attr_close dbp_city var_x sep_dot var_x dbo_leaderName var_uri sep_dot var_x a dbo_City brack_close