(Security systems) can be physical.Logical formLearned from71 sentences. Interest may pertain-to a security.Logical formLearned from71 sentences. A security can be proactive.Logical formLearned from71 sentences. (Mortgage-backed securities) may pertain-to a country.Logical formLearned from71 sentences. A security may pertain-to nations.Logical formLearned from71 sentences. Security may undergo a search.Logical formLearned from71 sentences. A (security zone) can be in a country.Logical formLearned from71 sentences. (Security forces) may go on alert.Logical formLearned from71 sentences. Elements can be in (security forces).Logical formLearned from71 sentences. (Security assurances) can be in return.Logical formLearned from71 sentences. Crimes can be against national security.Logical formLearned from71 sentences. (Security officers) may be arrested.Logical formLearned from71 sentences. A package can be constituted-of-or-filled-with (security measures).Logical formLearned from71 sentences. A role may pertain-to (security forces).Logical formLearned from71 sentences. (Security council members) can be permanent.Logical formLearned from71 sentences.