Ukraine

Ukraine is not a democracy. People keep thinking it is.
Well they are a democratically elected representative republic, with universal sufferage. Their last elections were heavily monitored.
A total of 2,369 international observers from 17 countries and 19 organizations were officially registered to monitor the elections. A record number of 139 non-governmental Ukrainian organizations were registered as observers.

This is because Russia has historically interfered heavily in Ukranian elections to the end of establishing puppet governments there. Something they were successful at until the recent "Revolution of Dignity" saw civilians rise up and remove Yanukovych.


As for government structure, of a federal level they have:

Executive:
-A democratically elected President
-A Prime Minister nominated by the president and confirmed by parliment
-Cabinet members nominated by the president and confirmed by parliment

Legislative:
- A Democratically elected single "body" Parliament

Judicial:
-A Constitutional Court that operates much like the supreme court
-Appeals courts, etc.