Harmful (algal blooms) can be in an ocean.Logical formLearned from2 sentences. (Soil changes) can be harmful.Logical formLearned from2 sentences. (Beverage cartons) can be harmful to an environment.Logical formLearned from2 sentences. Spores can be harmful to health.Logical formLearned from2 sentences. Sites can be harmful.Logical formLearned from2 sentences. A sexual contact can be harmful.Logical formLearned from2 sentences. Controversies can be harmful.Logical formLearned from2 sentences. Competition can be harmful to loggers.Logical formLearned from2 sentences. Setbacks can be harmful.Logical formLearned from2 sentences. (Testing policies) can be harmful.Logical formLearned from2 sentences. (Birthing practices) can be harmful.Logical formLearned from2 sentences. Heavy metals can be harmful.Logical formLearned from2 sentences. Material may be considered harmful.Logical formLearned from2 sentences. Activities can be harmful to society.Logical formLearned from2 sentences. Interference can be harmful.Logical formLearned from2 sentences.