gonzalo sánchez de lozada and gonzalo sánchez de lozada served under which vice president ?
SELECT DISTINCT var_uri where brack_open dbr_Gonzalo_Sánchez_de_Lozada dbo_vicePresident var_uri sep_dot dbr_Gonzalo_Sánchez_de_Lozada dbo_vicePresident var_uri brack_close