A concern may pertain-to a person.Logical formLearned from28 584 sentences. A concern may pertain-to a male.Logical formLearned from20 370 sentences. A concern may pertain-to persons.Logical formLearned from17 459 sentences. A concern can be that something-is-the-case.Logical formLearned from16 564 sentences. Concerns may pertain-to a person.Logical formLearned from16 090 sentences. Concerns may pertain-to a male.Logical formLearned from12 664 sentences. Concerns may pertain-to persons.Logical formLearned from12 560 sentences. Issues can be constituted-of-or-filled-with concern.Logical formLearned from12 401 sentences. A concern can be serious.Logical formLearned from11 133 sentences. Concerns can be serious.Logical formLearned from10 185 sentences. Concerns may pertain-to a country.Logical formLearned from8 737 sentences. Cause can be for concern.Logical formLearned from5 792 sentences. A cause can be for concern.Logical formLearned from5 670 sentences. A concern may pertain-to a female.Logical formLearned from5 544 sentences. A matter can be constituted-of-or-filled-with concern.Logical formLearned from5 506 sentences.