An investigation can be all-out.Logical formLearned from49 sentences. An investigation can be quantitative.Logical formLearned from49 sentences. An investigation can be sustained.Logical formLearned from49 sentences. Persons may begin an investigation.Logical formLearned from49 sentences. A laboratory can be at a center of an investigation of (anthrax attacks).Logical formLearned from49 sentences. A step can be in an investigation.Logical formLearned from49 sentences. An investigation can be into collusion.Logical formLearned from49 sentences. A criminal investigation may undergo an opening.Logical formLearned from49 sentences. An investigation can be an effort.Logical formLearned from49 sentences. Information can be on investigations.Logical formLearned from49 sentences. Authorities may continue an investigation.Logical formLearned from49 sentences. The police may conduct an investigation.Logical formLearned from49 sentences. An (investigation team) can be international.Logical formLearned from48 sentences. Investigations may be performed.Logical formLearned from48 sentences. Systems may undergo an investigation.Logical formLearned from48 sentences.