Susan,

Try this (note the keyword 'rest'):

<defclass grocery_list store_name=required rest />
<defclass grocery_item name=required quantity=1/>

<grocery_list
store_name="Acme Foods"
"apple"
<grocery_item name="milk"/>
<grocery_item name="pears" quantity=3/>
/>

If that doesn't fix it, let me know which version you are using, and
I will see if I can drum up the correct syntax for you.

Steam XML has undergone some revisions in the past year, and the
syntax has undergone some changes (different from the Water book) as
well.

To check the syntax for "other_unkeyed_args", I usually type the
word "plus" on a line by itself in the IDE, then double-click it: In
the lower-right window pane you should see the various "contracts"
for the plus method. The 'thing.number.<defmethod plus . . . />'
contract will use the current "other_unkeyed_args" syntax.

Let us know if you have other questions!

_Merrick