<!ENTITY example.outputs '<para>The above example(s) will output:'>
No please. I don't like (s).
Yup, we should treat those one by hand :)
(s) is horrible!
What about:
<!ENTITY example.outputs '<para>The above will output:</para>'>
Or, putting the (will be/similar to) together in a more general form:
<!ENTITY example.outputs '<para>The above output will be (at least similar to):</para>'>
No good. There are outputs which exactly display what should happen, and there are outputs which are close to that. No need to merge the two as it would lead to confusion IMHO.
Goba
