These demos are based on the HFST finite-state versions of language models. All software can be downloaded from the HFST download pages and the language models have acquired from free/libre and open source repositories in various places on the internet. Further details in each language's result pages.
This language module contains Apertium's dictionary en from mk-en. It has been converted to HFST automata using hfst-apertium2fst. The original source code was retrieved from apertium/trunk/apertium-mk-en/apertium-mk-en.en.dix revision 35709 and compiled on 2012-01-21.
If you do not understand the langauge you are experimenting with and are unable to obtain example word from en wikipedia, you may use house as a test case