A chemical can be harmful to an (ozone layer).Logical formLearned from2 sentences. A seepage can be harmful.Logical formLearned from2 sentences. Violence can be harmful.Logical formLearned from2 sentences. A parallel market can be harmful.Logical formLearned from2 sentences. Rises can be harmful to the economy.Logical formLearned from2 sentences. Unfair (trade practices) can be harmful to the economy.Logical formLearned from2 sentences. Contracts can be harmful.Logical formLearned from2 sentences. Volatility can be harmful to economic growth.Logical formLearned from2 sentences. Initiatives can be harmful to a Jewish state.Logical formLearned from2 sentences. A slovenliness can be harmful.Logical formLearned from2 sentences. Activities can be harmful to a security.Logical formLearned from2 sentences. Explosives can be harmful.Logical formLearned from2 sentences. Young stars can be harmful.Logical formLearned from2 sentences. An (ionizing radiation) can be harmful.Logical formLearned from2 sentences. A standoff can be harmful.Logical formLearned from2 sentences.