(defparameter *keywords* 
    '((("mom" "mother" "dad" "father" "brother" 
	      "sister" "uncle" "aunt")
       ("Tell me more about your family.") t)
      (("school" "university" "study" "teacher" "professor") 
       ("Are your studies a source of anxiety for you?" 
        "Please elaborate on your studies.") t)
      (("work" "job" "boss" "office") 
       ("Tell me more about your career") t)
      (("hello") ("Nice to see you. How can I help you?") nil)
      (("shit" "fuck") ("Please watch your language.") nil)
      (("no") ("Why not?") nil)
      (("yes") ("I see." "Why is it so?") nil)
      (nil ("Can you elaborate on that?" 
            "I would appreciate it if you would continue.") nil)
      ))