Hi Everyone,
I'm currently setting up a rule table in an interview where in some situations, the attribute will already be calculate but in other circumstances, will need to have a value input by the person taking the interview. I was wondering what type of wording I would have to use to set up the latter scenario. I tried using "unknown" parameters without success. I've attached a screenshot of a dummy example for reference below (the text "unknown" is a placeholder for what I want to do). Appreciate the help OPA gurus!

Best,
Anthony