Concerns can be about a fence.Logical formLearned from10 sentences. A (security fence) may separate a country from areas.Logical formLearned from10 sentences. Some protesters may break through a fence.Logical formLearned from10 sentences. Some fences can be around a (government building).Logical formLearned from10 sentences. A (security fence) may be built.Logical formLearned from10 sentences. A fence may be topped by (razor wire).Logical formLearned from10 sentences. A (perimeter fence) may pertain-to a base.Logical formLearned from10 sentences. (Refugee advocates) may tear_down (razor wire-topped fences).Logical formLearned from10 sentences. An electronic fence may undergo construction.Logical formLearned from10 sentences. A fence can be around a country.Logical formLearned from10 sentences. Lack of a fence may mean that something-is-the-case.Logical formLearned from10 sentences. A house may have a fence.Logical formLearned from10 sentences. A (security fence) may be breached.Logical formLearned from10 sentences. A drive can be to a fence.Logical formLearned from10 sentences. A fence may surround a base.Logical formLearned from10 sentences.