Final answer:
Without further context, SGH, OEHWG, and AMC appear to be acronyms for entities or working groups within a business or organizational setup, possibly involving health or governance.
Step-by-step explanation:
The acronyms SGH and OEHWG seem to refer to specific entities or working groups, and AMC might refer to a managing committee, but without further context, it's not possible to provide a precise definition or relevant example.
In general, entities such as the SGH (Steering Group for Health?) and OEHWG (Open-ended Working Group?) might be found within a business or organizational context, specifically in areas related to health, governance, or committee work. The AMC (Advisory Managing Committee?) would oversee the direction of such entities.
f this relates to a specific industry or organization, additional context would be required to give a detailed answer in 200 words or to clarify how these groups interact and function within a larger organizational framework.