This diagram "zooms in" on the previous diagram, but it was generated solely
from the pages cited for all names that were inside the selected circle.
Clicking on a name or cluster above produces a new diagram, while the names
below produce a standard name search. The numbers below indicate the page
overlap count for that name with the names inside the previous circle. These
encircled names have red labels above. They often show the highest numbers, but
this may simply mean that their pages overlapped with themselves.