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diff --git a/exercises/assignment1.mdwn b/exercises/assignment1.mdwn
index 6bfb1e18..2543ff1f 100644
--- a/exercises/assignment1.mdwn
+++ b/exercises/assignment1.mdwn
@@ -96,9 +96,9 @@
 
 *   Write a function `unmap2` that is something like the inverse of `map2`. This function expects two arguments, the second being a sequence of elements of some type *t*. The first is a function `g` that expects a single argument of type *t* and returns a *pair* of results, rather than just one result. We want to collate these results, the first into one sequence, and the second into a different sequence. Then `unmap2` should return those two sequences. Thus if:
 
-        g z1  # evaluates to [x1, y1]
-        g z2  # evaluates to [x2, y2]
-        g z3  # evaluates to [x3, y3]
+        g z1  # evaluates to (x1, y1)
+        g z2  # evaluates to (x2, y2)
+        g z3  # evaluates to (x3, y3)
 
     Then `unmap2 (g, [z1, z2, z3])` should evaluate to `([x1, x2, x3], [y1, y2, y3])`.