(Security forces) may open fire on demonstrators.Logical formLearned from53 sentences. (Security closures) may pertain-to a country.Logical formLearned from53 sentences. Cooperation can be on (security matters).Logical formLearned from53 sentences. A (security pact) can be with a US-city.Logical formLearned from53 sentences. (Security forces) may be placed on alert.Logical formLearned from53 sentences. (Security forces) can be preventive.Logical formLearned from53 sentences. A new (security concept) may feature trust.Logical formLearned from53 sentences. A (cabinet committee) can be on security.Logical formLearned from53 sentences. A problem can be with security.Logical formLearned from53 sentences. (Security precautions) can be tight.Logical formLearned from53 sentences. (Security ties) can be with a country.Logical formLearned from53 sentences. A lapse can be in security.Logical formLearned from52 sentences. A radio may quote (security sources).Logical formLearned from52 sentences. (Security sources) may be quoted as saying that something-is-the-case.Logical formLearned from52 sentences. A security may pertain-to a country.Logical formLearned from52 sentences.