what is the company which has ahmed bin saeed al maktoum and tim clark as key person ?
SELECT DISTINCT var_uri where brack_open var_uri dbp_keyPeople dbr_Ahmed_bin_Saeed_Al_Maktoum sep_dot var_uri dbp_keyPeople dbr_Tim_Clark_ attr_open airline_executive attr_close sep_dot var_uri a dbo_Company brack_close