Investigators may undergo a stonewalling.Logical formLearned from37 sentences. An investigator may pertain-to a commission.Logical formLearned from37 sentences. Discussions can be with investigators.Logical formLearned from37 sentences. Investigators may pertain-to a labor-department.Logical formLearned from37 sentences. Investigators may have a time.Logical formLearned from37 sentences. Investigators may concede that something-is-the-case.Logical formLearned from37 sentences. Investigators may maintain that something-is-the-case.Logical formLearned from37 sentences. Investigators may return.Logical formLearned from37 sentences. A female can be (co-principal investigator).Logical formLearned from37 sentences. Testimony can be to investigators.Logical formLearned from37 sentences. Investigators may rule_out that something-is-the-case.Logical formLearned from37 sentences. A boy may tell investigators.Logical formLearned from37 sentences. Investigators can be around the world.Logical formLearned from37 sentences. Investigators may sift.Logical formLearned from37 sentences. An investigator may find that something-is-the-case.Logical formLearned from37 sentences.