If the magnets repel each other the falling magnet will stop while the bottom magnet will pop off the bottom of the pencil.
(the magnets; repel; each other) (the falling magnet; will stop; T:while the bottom magnet will pop off the bottom of the pencil) (the bottom magnet; will pop off; the bottom of the pencil)
the magnets the falling magnet the bottom magnet
repel will stop will pop off
each other
T:while the bottom magnet will pop off the bottom of the pencil
the bottom of the pencil