Rumelhart and Greeno (1971) presented 234 participants with pairs of names
  of nine celebrities: the politicians L. B. Johnson (LBJ), Harold Wilson
  (HW), and Charles De Gaulle (CDG); the athletes Johnny Unitas (JU), Carl
  Yastrzemski (CY), and A. J. Foyt (AJF); the actresses Brigitte Bardot (BB),
  Elizabeth Taylor (ET), and Sophia Loren (SL).  Participants were instructed
  to choose the person with whom they would rather spend an hour of
  discussion.