How can I show all contact activity within a segment?

I'm trying to create a report to show the email send activity for any contact within a specific segment. The Email Analysis by Segment shows any activity that happened against that particular segement. However, the contacts within the specificed segment may be in several segments in the system, and I want to see everything that they did. It seems like I should be able to write some logic statement, but I'm just not that familiar with the syntax. I'm thinking it would read something like "If a contact ID/email is in Prompted Segment, then return all