Investigators may pertain-to a safety-bureau.Logical formLearned from15 sentences. Investigators can be from an airline.Logical formLearned from15 sentences. Investigators may begin work.Logical formLearned from15 sentences. Investigators may recognize that something-is-the-case.Logical formLearned from15 sentences. Investigators may find a hole.Logical formLearned from15 sentences. An investigator may speak on condition of anonymity.Logical formLearned from15 sentences. Investigators may work on a theory.Logical formLearned from15 sentences. Investigators may do a job.Logical formLearned from15 sentences. An investigator can be dutch.Logical formLearned from15 sentences. Investigators may search some homes.Logical formLearned from15 sentences. Investigators may be stymied.Logical formLearned from15 sentences. Investigators may do work.Logical formLearned from15 sentences. An interview can be with investigators.Logical formLearned from15 sentences. Investigators may turn_up evidence of involvement.Logical formLearned from15 sentences. Investigators may examine documents.Logical formLearned from15 sentences.