who is the prime minister of robert gascoyne-cecil who is also the minister of henry john temple ?
SELECT DISTINCT var_uri where brack_open dbr_Robert_Gascoyne-Cecil,_3rd_Marquess_of_Salisbury dbp_primeminister var_uri sep_dot dbr_Henry_John_Temple,_3rd_Viscount_Palmerston dbo_primeMinister var_uri brack_close