(Border officials) may pertain-to a country.Logical formLearned from92 sentences. Officials can be at a border.Logical formLearned from92 sentences. A border can be in an area.Logical formLearned from91 sentences. A side may pertain-to borders.Logical formLearned from91 sentences. Borders can be artificial.Logical formLearned from91 sentences. A state can be with borders.Logical formLearned from91 sentences. Security can be at a border.Logical formLearned from91 sentences. The south may pertain-to a border.Logical formLearned from91 sentences. A (border area) can be volatile.Logical formLearned from91 sentences. A situation can be at a border.Logical formLearned from90 sentences. A border can be with a female.Logical formLearned from90 sentences. Borders can be mixed.Logical formLearned from90 sentences. A country may send troops to a border.Logical formLearned from89 sentences. A border can be defined.Logical formLearned from89 sentences. A border can be invisible.Logical formLearned from89 sentences.