I'm parsing out values from an e-mail created issue and populating fields in a new issue. I've created a Lookup Table and I'm using .match methods and regular expressions to extract the values from the Summary and Description fields.

I'm creating a new issue and populating fields with the values from the Lookup table, like this:

The problem: We have a Select List field called Division. The values I'm getting from the Description in the trigger issue are slightly different than values in the Division select field. I don't have the option of changing either value at the source. So I have to do some kind of lookup and replacement.
For instance, the Division value I'm getting is 'Administrative Services', but the select list field value I need to set is 'Administration'. How can I do a static lookup and replacement to set the select list value correctly?
I've tried making a second Lookup Table with the conversions and using a Smart Value in the .get function for the second list.
{{DivisionLookup.get({{YaypayParams.get("Division")}})}}This doesn't work. :-(
I likely don't want to do IF/Then statements for each converted value. Yuk! Any ideas how I might elegantly achieve this? I do have ScriptRunner available to me if that helps.
Hope this makes sense and thanks in advance.
Jamie