who is the prime minister of bonar law who is also the minister of henry petty-fitzmaurice ?
SELECT DISTINCT var_uri where brack_open dbr_Bonar_Law dbp_primeminister var_uri sep_dot dbr_Henry_Petty-Fitzmaurice,_5th_Marquess_of_Lansdowne dbo_primeMinister var_uri brack_close