entity attributes to text

Content

I have an interview where I need to collect multiple contacts' information and include it in the thread text of a Service Cloud incident. 

Basically, I'm collecting the names of on site contacts for a visit, including first and last name, email, office and mobile phone.  I created an entity to model that, and the interview works OK.

My problem is that I can't figure out how to iterate over the contact entity instances and make them into text for the incident thread.  ForAll() looked like it might work, but I haven't found a way to make it work.