which subsidiary of egyptair serves both sharm el-sheikh international airport and cairo international airport ?
select distinct var_uri where brack_open dbr_EgyptAir dbo_subsidiary var_uri sep_dot var_uri dbo_targetAirport dbr_Sharm_el-Sheikh_International_Airport sep_dot var_uri dbo_targetAirport dbr_Cairo_International_Airport sep_dot brack_close