An investigation can be by authorities.Logical formLearned from20 sentences. A person may carry_out an investigation.Logical formLearned from20 sentences. An investigation can be sham.Logical formLearned from20 sentences. Information can be from investigations.Logical formLearned from20 sentences. An investigation may pertain-to a (police department).Logical formLearned from20 sentences. A legislature may order an investigation.Logical formLearned from20 sentences. Date can be on an investigation.Logical formLearned from20 sentences. An investigation can be a process.Logical formLearned from20 sentences. An airstrike may undergo an investigation.Logical formLearned from20 sentences. A football-association may launch an investigation.Logical formLearned from20 sentences. Criminal investigation can be by a judge.Logical formLearned from20 sentences. A person may teach (air crash investigation).Logical formLearned from20 sentences. A head may pertain-to an (accident investigation agency).Logical formLearned from20 sentences. An investigation may be headed by a male.Logical formLearned from20 sentences. A (police chief) can be for criminal investigations.Logical formLearned from20 sentences.