Concerns can be about a process.Logical formLearned from133 sentences. A concern may pertain-to a nation.Logical formLearned from133 sentences. Persons may appreciate a concern.Logical formLearned from133 sentences. A security-council may express a concern.Logical formLearned from132 sentences. A president may express concern.Logical formLearned from132 sentences. A concern can be valid.Logical formLearned from132 sentences. A US-city may have concerns.Logical formLearned from132 sentences. Concerns can be over an economy.Logical formLearned from132 sentences. A concern can be exclusive.Logical formLearned from132 sentences. A concern may pertain-to a company.Logical formLearned from131 sentences. Concern can be for students.Logical formLearned from131 sentences. Crime can be a concern.Logical formLearned from131 sentences. Concerns may pertain-to citizens.Logical formLearned from131 sentences. A concern may pertain-to a president.Logical formLearned from131 sentences. Governments may express concern.Logical formLearned from131 sentences.