list sports managers who managed peterborough united f . c . and crystal palace f . c . ?
SELECT DISTINCT var_uri where brack_open var_uri dbo_managerClub dbr_Peterborough_United_F.C sep_dot sep_dot var_uri dbp_managerclubs dbr_Crystal_Palace_F.C sep_dot sep_dot var_uri a dbo_SportsManager brack_close