Investigators may visit a home.Logical formLearned from24 sentences. An investigator can be serious.Logical formLearned from24 sentences. An investigator can be competent.Logical formLearned from24 sentences. An investigator can be diligent.Logical formLearned from24 sentences. Statements can be to an investigator.Logical formLearned from24 sentences. Investigators may probe a (drug death) of a friend.Logical formLearned from24 sentences. Investigators may express concern.Logical formLearned from24 sentences. A principal investigator can be in a study.Logical formLearned from24 sentences. Investigators may act on a tip.Logical formLearned from24 sentences. An investigator can be from a safety-board.Logical formLearned from24 sentences. Investigators may be given.Logical formLearned from24 sentences. (Criminal investigators) may pertain-to a country.Logical formLearned from24 sentences. A shortage can be constituted-of-or-filled-with investigators.Logical formLearned from24 sentences. Evidence can be for investigators.Logical formLearned from24 sentences. A principal investigator may undergo qualifications.Logical formLearned from24 sentences.