4.3BSD-UWisc/lib/learn/editor/L32.1b

#print
Note that the substitute command changes the first
instance of something that matches.  Consider the
line
  now is the time for all good men
and the substitute command
   s/tim/TIM/
applied to it.
Which word in the line will be altered by that command?
Type "answer WORD" where WORD is the word that will
be changed.
#copyin
#user
#uncopyin
#match time
#log
#next
32.1c 10