sign has the special meaning of ``multiply by four.'' It multiplies the
argument for the next command by four. @kbd{C-u} twice multiplies it by
sixteen. Thus, @kbd{C-u C-u C-f} moves forward sixteen characters. This
-is a good way to move forward ``fast'', since it moves about 1/5 of a line
+is a good way to move forward ``fast,'' since it moves about 1/5 of a line
in the usual size screen. Other useful combinations are @kbd{C-u C-n},
@kbd{C-u C-u C-n} (move down a good fraction of a screen), @kbd{C-u C-u
C-o} (make ``a lot'' of blank lines), and @kbd{C-u C-k} (kill four