Rewards can be harmful.Logical formLearned from1 sentences. Some (studio controls) can be harmful.Logical formLearned from1 sentences. A cement can be harmful.Logical formLearned from1 sentences. Controversy can be harmful to an (education system).Logical formLearned from1 sentences. Images can be harmful to psyches of boys.Logical formLearned from1 sentences. Misinterpretations can be harmful.Logical formLearned from1 sentences. A virus may prove harmful to humans.Logical formLearned from1 sentences. A (press coverage) can be harmful.Logical formLearned from1 sentences. An invasion can be harmful to (foreign policy interests).Logical formLearned from1 sentences. Sexualization can be harmful in itself.Logical formLearned from1 sentences. (Development problems) can be harmful.Logical formLearned from1 sentences. Writings can be harmful to (state security).Logical formLearned from1 sentences. A (mystery envelope) can be harmful to a (football star).Logical formLearned from1 sentences. A surface can be harmful.Logical formLearned from1 sentences. A (surface algae) can be harmful.Logical formLearned from1 sentences.