A (radio station) can be guarded.Logical formLearned from11 sentences. An airfield can be guarded.Logical formLearned from11 sentences. A federal courthouse can be guarded.Logical formLearned from11 sentences. Cooperation can be guarded.Logical formLearned from11 sentences. (State secrets) can be guarded.Logical formLearned from11 sentences. A (budget rebate) can be guarded.Logical formLearned from11 sentences. An international airport can be guarded.Logical formLearned from11 sentences. A meeting can be guarded.Logical formLearned from11 sentences. A gathering can be guarded.Logical formLearned from11 sentences. A reply can be guarded.Logical formLearned from10 sentences. Beaches can be guarded.Logical formLearned from10 sentences. A personality can be guarded.Logical formLearned from10 sentences. A career can be guarded.Logical formLearned from10 sentences. An ordnance can be guarded.Logical formLearned from10 sentences. A secret knowledge can be guarded.Logical formLearned from10 sentences.