How do you change Captcha verification words?

I have an eForm running on my site and would like to modify the words that Captcha displays to the user for verification. Where can I find the roster of terms that Captcha pulls from so that I might manually enter items that are more thematically appropriate for the site I am building?

Thanks for any advice.

In the manager go to Tools > Configuration and select the User tab. There is a field called CAPTCHA Words that you can edit the words that will be used.

Thanks very much for the tip; it worked.