I believe the answer would be Bill Gates. An appositive is a noun that renames a noun right beside it. In this case, "Bill Gates" is renaming "One of the richest men in the world."
Answer:
pede er ques hbaancea l ia zqueird ya quaeesew e les li mte id feuezaru
Explanatio
I would do (page 2) just to be on the safe side, but i think (2) would also work