Some necessary conditions may exist for development of bilateral relations to a benefit of persons of some countries.Logical formLearned from3 sentences. Bilateral relations to a benefit of persons of some countries may undergo a development.Logical formLearned from3 sentences. Differences may stand in a way of bilateral relations.Logical formLearned from3 sentences. Bilateral relations can be during some years.Logical formLearned from3 sentences. Bilateral relations may maintain a momentum.Logical formLearned from3 sentences. An (exercise series) can be bilateral.Logical formLearned from3 sentences. Bilateral relationship may undergo an expansion.Logical formLearned from3 sentences. Bilateral relations can be between some partners.Logical formLearned from3 sentences. Problems may block a development of bilateral relations.Logical formLearned from3 sentences. Bilateral relations can be on a basis of some principles of co-existence.Logical formLearned from3 sentences. Bilateral relations may be based on friendship.Logical formLearned from3 sentences. Some countries may develop bilateral relations.Logical formLearned from3 sentences. A bilateral relationship may stagnate.Logical formLearned from3 sentences. Bilateral relations may remain cool.Logical formLearned from3 sentences. Negotiations can be on a set of bilateral agreements.Logical formLearned from3 sentences.