--- a/hws/hw07.tex	Sat Dec 02 21:37:04 2023 +0000
+++ b/hws/hw07.tex	Wed Feb 21 09:14:12 2024 +0000
@@ -193,7 +193,7 @@
   (iv) same as (ii) $E\cdot + \cdot E \cdot + \cdot E$
   }
 
-\item Suppose the string $``9-5+2''$. Give all ASTs that
+\item Suppose the string $``9-5+2''$. Give all parse trees that
   the following two grammars generate for this string.
 
 Grammar 1, where List is the starting symbol: