A continuation of an investigation can be necessary.Logical formLearned from5 sentences. New blood can be necessary.Logical formLearned from5 sentences. (Power methods) can be necessary.Logical formLearned from5 sentences. An (emergency extraction) can be necessary.Logical formLearned from5 sentences. (Austerity measures) can be necessary.Logical formLearned from5 sentences. Ingedients can be necessary.Logical formLearned from5 sentences. Passage of a bill can be necessary.Logical formLearned from5 sentences. Scientists may consider necessary.Logical formLearned from5 sentences. Necessary conditions can be for negotiations.Logical formLearned from5 sentences. (Labor reform) can be necessary.Logical formLearned from5 sentences. Trust can be necessary for a partnership.Logical formLearned from5 sentences. A (weekend raid) can be necessary.Logical formLearned from5 sentences. A period of restraint can be necessary.Logical formLearned from5 sentences. An election can be a necessary condition.Logical formLearned from5 sentences. A quarantine can be necessary.Logical formLearned from5 sentences.