Investigations can be on-going.Logical formLearned from18 sentences. A primary objective may pertain-to an investigation.Logical formLearned from18 sentences. Opportunities can be for investigations.Logical formLearned from18 sentences. A military-or-other-action-organization may undergo an investigation.Logical formLearned from18 sentences. An investigation can be into an abduction.Logical formLearned from18 sentences. A family may press for investigation.Logical formLearned from18 sentences. An investigation can be by a division.Logical formLearned from18 sentences. A (the investigation) may pertain-to a weekday.Logical formLearned from18 sentences. Protests may demand investigations.Logical formLearned from18 sentences. A world-city may demand an investigation.Logical formLearned from18 sentences. An investigation can be into an organization.Logical formLearned from18 sentences. Evidence can be relevant to an investigation.Logical formLearned from18 sentences. An agency may comment on investigations.Logical formLearned from18 sentences. An investigation can be into a raid.Logical formLearned from18 sentences. An (investigation commission) may pertain-to an international-political-entity.Logical formLearned from18 sentences.