Officials may call for an investigation.Logical formLearned from23 sentences. An investigation may open.Logical formLearned from23 sentences. An operation can be part of an investigation.Logical formLearned from23 sentences. (Investigation results) may show that something-is-the-case.Logical formLearned from23 sentences. The police may start an investigation.Logical formLearned from23 sentences. An investigation can be into conditions.Logical formLearned from23 sentences. (Influence peddling) may undergo an investigation.Logical formLearned from23 sentences. An investigation may state that something-is-the-case.Logical formLearned from23 sentences. Effects may undergo an investigation.Logical formLearned from23 sentences. An investigation may be codenamed.Logical formLearned from23 sentences. An (investigation agency) may pertain-to a country.Logical formLearned from23 sentences. A (murder case) may undergo an investigation.Logical formLearned from23 sentences. An investigation can be improper.Logical formLearned from23 sentences. An investigation can be by a panel.Logical formLearned from23 sentences. An investigation can be into a use of drugs.Logical formLearned from23 sentences.