How to get a random friend of friend of someone in a facebook application using fql?

How to get a random friend of friend of someone in a facebook application using fql?

here is some documentation but I cant find what im looking for :s

http://developers.facebo开发者_运维问答ok.com/docs/reference/fql/user

somebody can help me?

This would require permissions to access friends lists of friends of app. It's impossible for a user to grant privileges on behalf of friends, so you're out of luck.