You can see it works quite well except that words starting with uppercase letters come first. I am guessing it is sorting by ASCII values.

We had a long thread on sorting uppercase a while back.
It turns out that the whole world (including at least some xslt
implementors, but not including Stan and me) took a very unreasonable
reading of the sorting specification in the XSLT spec.

the end result is that you should get "sensible" results in all
processors but you will get different results.

I think in this case you want a case insensitive sort and its basically
english text so..