--- a/hws/hw06.tex	Wed Oct 31 12:51:42 2018 +0000
+++ b/hws/hw06.tex	Fri Nov 02 00:24:28 2018 +0000
@@ -67,8 +67,8 @@
 \end{center}
 
 there are several values for how these regular expressions can
-recognise the string (for 1) $ab$ and (for 2) $aaa$. Give in each case
-all the values and indicate which one is the POSIX value.
+recognise the strings (for 1) $ab$ and (for 2) $aaa$. Give in each case
+\emph{all} the values and indicate which one is the POSIX value.
 \item \POSTSCRIPT        
 \end{enumerate}