(Government securities) may undergo purchases.Logical formLearned from55 sentences. An (airport security) may pertain-to a country.Logical formLearned from55 sentences. Persons may want security.Logical formLearned from55 sentences. An one may care about national security.Logical formLearned from55 sentences. (Debt securities) can be long-term.Logical formLearned from55 sentences. Securities may be backed by (student loans).Logical formLearned from55 sentences. A demand can be for securities.Logical formLearned from55 sentences. Some (security measures) can be in place.Logical formLearned from55 sentences. A (homeland security adviser) may pertain-to a male.Logical formLearned from55 sentences. A (security architecture) can be regional.Logical formLearned from55 sentences. (Food security) can be in a region.Logical formLearned from55 sentences. A national security may be threatened.Logical formLearned from55 sentences. National security can be at risk.Logical formLearned from55 sentences. An obsession can be with security.Logical formLearned from55 sentences. (Security talks) can be between a country.Logical formLearned from55 sentences.