A border may pertain-to some nations.Logical formLearned from89 sentences. A southern border can be porous.Logical formLearned from89 sentences. A border can be with a region.Logical formLearned from88 sentences. A border can be transparent.Logical formLearned from88 sentences. A (border region) can be troubled.Logical formLearned from88 sentences. A river may form part of a border.Logical formLearned from88 sentences. A vicinity may pertain-to a border.Logical formLearned from88 sentences. Some refugees may cross a border.Logical formLearned from88 sentences. A control may pertain-to borders.Logical formLearned from87 sentences. A river may mark a border.Logical formLearned from87 sentences. Traffic can be across a border.Logical formLearned from87 sentences. A dispute can be over a border.Logical formLearned from87 sentences. (Border guards) may shoot dead.Logical formLearned from87 sentences. A (border dispute) can be between a country.Logical formLearned from86 sentences. A border can be jagged.Logical formLearned from86 sentences.