A (pipe lining process) may prevent (pipe corrosion).Logical formLearned from9 sentences. A person may prevent an injury of others.Logical formLearned from9 sentences. A responsibility can be for preventing escalation.Logical formLearned from9 sentences. A proposal may prevent waste.Logical formLearned from9 sentences. Suicides may be prevented.Logical formLearned from9 sentences. Authorities may prevent a male from returning.Logical formLearned from9 sentences. Interest can be in preventing genocide.Logical formLearned from9 sentences. Health may be prevented.Logical formLearned from9 sentences. A ban may prevent a government from negotiating with (drug companies).Logical formLearned from9 sentences. A problem may be prevented.Logical formLearned from9 sentences. Persons may prevent civilization from imploding.Logical formLearned from9 sentences. Security may prevent a male from reaching a legislature.Logical formLearned from9 sentences. A loss may be prevented.Logical formLearned from9 sentences. (Gum disease) may be prevented.Logical formLearned from9 sentences. Grounds can be for preventing someone.Logical formLearned from9 sentences.