Apple script to export images based on keyword hierarchy

Hi,

I am looking for an apple script to export images based on keyword hierarchy.
Let say my keyword tree looks like

Places
--------USA
--------Europe
--------Canada

I would like to create a script / process that will create a folder structure based on that hierarchy with the relevant images

/Places/USA
/Places/ Europe
/Places/ Canada

and so forth

Any idea how to do so ?

Nadav