A (lead exposure) can be harmful.Logical formLearned from2 sentences. Content may be considered harmful.Logical formLearned from2 sentences. An invention may be considered harmful to national security.Logical formLearned from2 sentences. An (interference potential) can be harmful.Logical formLearned from2 sentences. A pollutant can be harmful to health.Logical formLearned from2 sentences. Gmoes can be harmful to human health.Logical formLearned from2 sentences. (Violet rays) can be harmful.Logical formLearned from2 sentences. A presidency can be harmful to a nation.Logical formLearned from2 sentences. Times can be harmful.Logical formLearned from2 sentences. Cults can be harmful.Logical formLearned from2 sentences. A notoriety can be harmful.Logical formLearned from2 sentences. A way can be harmful to a male.Logical formLearned from2 sentences. Dander can be harmful to computers.Logical formLearned from2 sentences. A mentality can be harmful to a (law profession).Logical formLearned from2 sentences. (Chemical contaminants) can be harmful.Logical formLearned from2 sentences.