Persons may fight on fronts.Logical formLearned from12 sentences. Persons can be part of an united front.Logical formLearned from12 sentences. Challenges can be on fronts.Logical formLearned from12 sentences. A front can be for an insurgency.Logical formLearned from12 sentences. An united front can be against threats.Logical formLearned from12 sentences. A US-city may open a front.Logical formLearned from12 sentences. A front may move through an area.Logical formLearned from12 sentences. Front may pertain-to a receiver.Logical formLearned from12 sentences. Troops can be at a front.Logical formLearned from12 sentences. An united front can be rare.Logical formLearned from12 sentences. Forces may advance on some fronts.Logical formLearned from12 sentences. A front may be formed.Logical formLearned from12 sentences. A (core leader) may pertain-to a front.Logical formLearned from11 sentences. A front may pertain-to a module.Logical formLearned from11 sentences. Successes can be on a front.Logical formLearned from11 sentences.