Results may pertain-to an investigation.Logical formLearned from517 sentences. An investigation may proceed.Logical formLearned from516 sentences. A nature may pertain-to an investigation.Logical formLearned from516 sentences. Investigation can be underway.Logical formLearned from507 sentences. An investigation can be prompt.Logical formLearned from501 sentences. A conclusion may pertain-to an investigation.Logical formLearned from501 sentences. An investigation can be into an incident.Logical formLearned from492 sentences. Investigations may find that something-is-the-case.Logical formLearned from489 sentences. An investigation may take place.Logical formLearned from489 sentences. An investigation can be nationwide.Logical formLearned from487 sentences. An investigation may be completed.Logical formLearned from480 sentences. An investigation can be into an attack.Logical formLearned from478 sentences. An accident may undergo an investigation.Logical formLearned from478 sentences. A bombing may undergo an investigation.Logical formLearned from478 sentences. An investigation may conclude.Logical formLearned from475 sentences.