char *tlas[] = { 
    "ALA",
    "APA",
    "ASA",
    "CIA",
    "FBI",
    "GNU", 
    "GUM",
    "IBM", 
    "JFK",
    "LOL", 
    "LYL",
    "MIA",
    "MLA",
    "OMG",
    "SAD", 
    "SAM", 
    "TLA",
  };
  char *defns[] = { 
    "American Library Association",
    "American Psychological Association",
    "American Sociological Association",
    "Central Intelligence Agency",
    "Federal Bureau of Investigation",
    "GNU's Not Unix",
    "Grinnell's Unfunny Magazine",
    "International Business Machines",
    "John Fitzgerald Kennedy",
    "Laugh Out Loud",
    "Love You Lots",
    "Missing In Action",
    "Modern Language Association",
    "Seasonal Affective Disorder",
    "Sam's Amazing Mastery",
    "Three-Letter Acronym",
  };