Lost word association game

This game is pretty simple (please tell me if this has been done before). The aim of the game is to see how long we can go linking things in the world of lost. With out reusing the same thing. This is how you play.

You have to put something which is linked to what the person above you has put already such as Jack.
This means you could put a number of things one would be doctor.
The person below you would then link something to that simple, right? Good :D