Persons may discuss problems.Logical formLearned from209 sentences. A percent may pertain-to problems.Logical formLearned from209 sentences. Problems may undergo solutions.Logical formLearned from208 sentences. Roots may pertain-to problems.Logical formLearned from208 sentences. Research can be on problems.Logical formLearned from208 sentences. A problem can be with a scenario.Logical formLearned from208 sentences. Problems can be with an approach.Logical formLearned from208 sentences. A problem may be detected.Logical formLearned from207 sentences. (Knee problems) may pertain-to a male.Logical formLearned from207 sentences. A person may notice a problem.Logical formLearned from206 sentences. A problem can be ...Logical formLearned from206 sentences. Illegal immigration can be a problem.Logical formLearned from206 sentences. Problems can be in a market.Logical formLearned from206 sentences. A problem can be perplexing.Logical formLearned from205 sentences. Problems can be with a system.Logical formLearned from205 sentences.