Response can be to a concern.Logical formLearned from554 sentences. A concern may pertain-to a US-city.Logical formLearned from551 sentences. Response can be to concern.Logical formLearned from551 sentences. A concern can be persistent.Logical formLearned from549 sentences. Concern can be about inflation.Logical formLearned from549 sentences. Concerns can be over the economy.Logical formLearned from547 sentences. Concerns may pertain-to a government.Logical formLearned from545 sentences. A concern can be vital.Logical formLearned from537 sentences. Concerns can be fundamental.Logical formLearned from536 sentences. Safety can be a concern.Logical formLearned from534 sentences. Concern can be about an ability.Logical formLearned from531 sentences. Concerns may pertain-to an international community.Logical formLearned from531 sentences. A person may appreciate a concern.Logical formLearned from531 sentences. A concern can be obvious.Logical formLearned from528 sentences. Concern can be for others.Logical formLearned from526 sentences.