An investigation can be into an abuse of power.Logical formLearned from16 sentences. An investigation can be tireless.Logical formLearned from16 sentences. A misuse of painkillers may prompt an investigation.Logical formLearned from16 sentences. A (background investigation) may pertain-to a person.Logical formLearned from16 sentences. An investigation can be into ethics.Logical formLearned from16 sentences. An investigation can be for abuse of power.Logical formLearned from16 sentences. Investigations can be into a company.Logical formLearned from16 sentences. Persons may wait for an investigation.Logical formLearned from16 sentences. An investigation can be by a programme.Logical formLearned from16 sentences. Relation can be to investigations.Logical formLearned from16 sentences. A government-agency may launch an investigation of a matter.Logical formLearned from16 sentences. A national-agency may launch an investigation.Logical formLearned from16 sentences. Investigations can be unprecedented.Logical formLearned from16 sentences. An investigation may surround an overdose.Logical formLearned from16 sentences. An investigation can be deliberate.Logical formLearned from16 sentences.