A (plutonium issue) may remain unresolved.Logical formLearned from1 sentences. (Campaign season) may highlight a long line of unresolved problems.Logical formLearned from1 sentences. Unresolved problems may undermine a country.Logical formLearned from1 sentences. An unresolved problem may pertain-to sanctuaries.Logical formLearned from1 sentences. An unresolved problem of sanctuaries can be a topic.Logical formLearned from1 sentences. A (class-action suit) may remain unresolved.Logical formLearned from1 sentences. Intelligence may be left unresolved.Logical formLearned from1 sentences. A deadlock can be unresolved.Logical formLearned from1 sentences. A (restitution situation) can be unresolved.Logical formLearned from1 sentences. A (garbage strike) can be unresolved.Logical formLearned from1 sentences. (Sibling issues) can be unresolved.Logical formLearned from1 sentences. Some glitches may remain unresolved.Logical formLearned from1 sentences. A fate of (airplane crash survivors) can be unresolved.Logical formLearned from1 sentences. An equation can be unresolved.Logical formLearned from1 sentences. Diseases can be unresolved.Logical formLearned from1 sentences.