Scroll through the decision tree below and you will see
that it contains all the issues in our case.
To keep trees to a viewable size, we have used clones for any parts of
the tree that are exact replicas of another part higher up. Each "clone master"
is preceded by a dark black line and an identifying number, and consists of all issues to
the right of that number. The "clone copies" are hidden but are identified by
their clone number and a description of the issues they include.