However, it actually must have the polarity of magnet's south pole since it attracts the north pole of a compass needle.
(it; actually must have; the polarity of magnet's south pole; T:since it attracts the north pole of a compass needle) (it; attracts; the north pole of a compass needle)
it it
actually must have attracts
the polarity of magnet's south pole T:since it attracts the north pole of a compass needle
the north pole of a compass needle