The Everything Search input:
The search results
Why does the former use "Man, Patriarch, Prophet, Seer, Shepherd" while the latter uses "Biblical Man, Patriarch, Prophet, Shepherd". There is clearly a difference in source but I don't understand why.
In the auto-completer you are selecting a Person reference. This adds a Person search term. If you had Match Equivalent References turned off, then this would only find instances of that particular reference in your library. The tooltip displays data from the Biblical People dataset.
Factbook displays a page about a group of equivalent references, in this case, all the references that are equivalent to the person Abraham. This data comes from the Unified Annotation Vocabulary dataset. It has its own title and subtitles (and the description will come from one of the equivalent references). The subtitles in UAV are informed by the Biblical People roles, but will not necessarily be an exact match.