A root may pertain-to a problem.Logical formLearned from4 319 sentences. (Health problems) can be serious.Logical formLearned from4 253 sentences. A person may have a problem.Logical formLearned from4 129 sentences. A problem can be basic.Logical formLearned from3 797 sentences. Variety can be constituted-of-or-filled-with problems.Logical formLearned from3 562 sentences. A problem can be in a country.Logical formLearned from3 418 sentences. Problems can be global.Logical formLearned from3 391 sentences. A problem may undergo a solution.Logical formLearned from3 204 sentences. A nature may pertain-to a problem.Logical formLearned from3 174 sentences. A solution can be to problems.Logical formLearned from3 151 sentences. A range can be constituted-of-or-filled-with problems.Logical formLearned from3 089 sentences. A problem can be global.Logical formLearned from3 060 sentences. A solution can be to a problem.Logical formLearned from3 055 sentences. Problems can be related.Logical formLearned from3 007 sentences. A female may have a problem.Logical formLearned from2 964 sentences.