using text list blocks or xml

I want to create an adlibs style game.

but instead of typing in random words. I want them to select from my word lists.

and if word cat selected set word list cat items (milk;ball;catnip) would be selectable

if dog selected set word list dog items (bone;chewy;ball) and so on.

I have a basic list of items.

every tick compare TextList

if cat = selected set catlist visible.

If ball = selected set catlist2 visible.

If play = selected set text (The cat loves to play with a ball of yarn.) play (read text Ball of yarn)

does this look to be on the right track or is there a better way?

I would use JSON, like:

{"cat": ["milk","ball","catnip"], "dog": ["bone","chewy","ball"]}

unless you need more cross referencing, then maybe a 2-d array would be better. You can still use JSON, just the underlying data structure changes.