which office holder's military branch is military of the gambia and vice president is isatou njie-saidy ?
SELECT DISTINCT var_uri where brack_open var_uri dbo_militaryBranch dbr_Military_of_the_Gambia sep_dot var_uri dbo_vicePresident dbr_Isatou_Njie-Saidy sep_dot var_uri a dbo_OfficeHolder brack_close