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) ___________.