Andrew met his roommate Danny when they both joined the Independent Filmmakers Club as freshmen, and they have a large group of mutual friends through that group. More recently, Danny has joined a fraternity and has been inviting Andrew to join him at the frat's parties and other events. Andrew has accepted a few invitations, but feels awkward at the fraternity events because he just doesn't identify with the other people who attend. We would describe the filmmakers' club as Andrew's and the fraternity as a(n) .