rules state data

DRP7, Rules 7.x-2.2

I'm working on a concept for keeping lists of taxonomy terms to have a 'related-entities' concept, in a custom module. E.g. Showing a node? here are the tids for the 'category' vocab, now I can create a block that show nodes with the matching tids.

I have a context implementation working well, but thought to add a Rules based implementation as well.