Persons may have a (security system).Logical formLearned from51 sentences. (Security forces) may pertain-to leader.Logical formLearned from51 sentences. A (security cooperation) can be with a country.Logical formLearned from51 sentences. (Security coordination) can be with a country.Logical formLearned from51 sentences. A (security chief) may pertain-to a president.Logical formLearned from51 sentences. Persons may make (security arrangements).Logical formLearned from51 sentences. A (food security) may pertain-to a nation.Logical formLearned from51 sentences. A shootout can be between (security forces).Logical formLearned from51 sentences. Police may step_up (security measures).Logical formLearned from51 sentences. A world-city may beef_up security.Logical formLearned from51 sentences. (Security forces) may be ringed.Logical formLearned from51 sentences. Demands can be for (security guarantees).Logical formLearned from51 sentences. Authorities may step_up security.Logical formLearned from51 sentences. (Security checks) can be tight.Logical formLearned from51 sentences. A female may work as a (security guard).Logical formLearned from51 sentences.