A security may pertain-to borders.Logical formLearned from228 sentences. A border can be between a us-state.Logical formLearned from227 sentences. Borders may undergo a closure.Logical formLearned from227 sentences. A border can be closed.Logical formLearned from223 sentences. Borders may undergo an opening.Logical formLearned from221 sentences. A border can be porous.Logical formLearned from221 sentences. Borders can be geographic.Logical formLearned from221 sentences. Borders can be closed.Logical formLearned from220 sentences. A country may share a border with a country.Logical formLearned from220 sentences. A border can be troubled.Logical formLearned from220 sentences. Borders can be defensible.Logical formLearned from217 sentences. Borders can be territorial.Logical formLearned from216 sentences. Borders can be provincial.Logical formLearned from215 sentences. A border can be green.Logical formLearned from215 sentences. Borders may pertain-to an international-political-entity.Logical formLearned from211 sentences.