A grave can be guarded.Logical formLearned from2 sentences. (Interrogation techniques) can be guarded.Logical formLearned from2 sentences. A robot can be guarded.Logical formLearned from2 sentences. A cabin can be guarded.Logical formLearned from2 sentences. (Apartment buildings) can be guarded.Logical formLearned from2 sentences. A truce can be guarded.Logical formLearned from2 sentences. A (security fence) can be guarded.Logical formLearned from2 sentences. Military bases can be guarded.Logical formLearned from2 sentences. Powers can be guarded.Logical formLearned from2 sentences. An open space can be guarded.Logical formLearned from2 sentences. Equations can be guarded.Logical formLearned from2 sentences. A (perm facility) can be guarded.Logical formLearned from2 sentences. A (holding camp) can be guarded.Logical formLearned from2 sentences. A quantification can be guarded.Logical formLearned from2 sentences. A world-city can be guarded.Logical formLearned from2 sentences.