(Energy problems) may pertain-to a nation.Logical formLearned from249 sentences. An urgency may pertain-to a problem.Logical formLearned from249 sentences. A litany can be constituted-of-or-filled-with problems.Logical formLearned from249 sentences. Problems may worsen.Logical formLearned from247 sentences. A problem may pertain-to everyone.Logical formLearned from245 sentences. A problem may require a solution.Logical formLearned from245 sentences. Problems can be with a law.Logical formLearned from244 sentences. A problem can be for women.Logical formLearned from244 sentences. A problem can be in the world.Logical formLearned from244 sentences. A country may have some problems.Logical formLearned from244 sentences. Problems may pertain-to a president.Logical formLearned from244 sentences. (Security problems) can be serious.Logical formLearned from243 sentences. A fix can be for a problem.Logical formLearned from243 sentences. Persons may deal with problems.Logical formLearned from243 sentences. A problem can be in a us-state.Logical formLearned from243 sentences.