Problems may undergo an investigation.Logical formLearned from191 sentences. Investigations can be archeological.Logical formLearned from191 sentences. An investigation can be fresh.Logical formLearned from191 sentences. A role can be in an investigation.Logical formLearned from190 sentences. An assassination may undergo an investigation.Logical formLearned from190 sentences. An investigation can be closed.Logical formLearned from189 sentences. An investigation can be by prosecutors.Logical formLearned from189 sentences. An investigation can be transparent.Logical formLearned from188 sentences. An investigation can be painstaking.Logical formLearned from187 sentences. Investigations can be into an incident.Logical formLearned from187 sentences. An investigation can be into bombings.Logical formLearned from187 sentences. An investigation can be into a scandal.Logical formLearned from187 sentences. An investigation can be into an affair.Logical formLearned from186 sentences. An investigation can be into a disappearance.Logical formLearned from184 sentences. A company may cooperate with an investigation.Logical formLearned from184 sentences.