Principal investigator can be in a study.Logical formLearned from17 sentences. Investigators can be sluggish.Logical formLearned from17 sentences. Investigators may state that something-is-the-case.Logical formLearned from17 sentences. An investigator can be for a florida-department of children.Logical formLearned from17 sentences. Investigators may be confirmed.Logical formLearned from17 sentences. Investigators may recover a (cockpit voice recorder) from a wreckage of a helicopter.Logical formLearned from17 sentences. A person may meet with investigators.Logical formLearned from17 sentences. Investigators can be concerned.Logical formLearned from17 sentences. An agreement can be with investigators.Logical formLearned from17 sentences. Investigators may work through a night.Logical formLearned from17 sentences. Investigators may pertain-to a government.Logical formLearned from17 sentences. Investigators may serve (search warrants).Logical formLearned from17 sentences. An investigator can be with a police-department.Logical formLearned from17 sentences. Investigators may look into a crash.Logical formLearned from17 sentences. Investigators may have hands.Logical formLearned from17 sentences.