Command not recognised. Example commands:
leave a memo for Jack:
  _BOT_NICK_: tell Jack: hi Jack
tell the last time Jill chatted:
  _BOT_NICK_: when did you last see Jill?
remember a factoid named lemon:
  _BOT_NICK_: lemon is yummy
forget the "yummy" lemon factoid:
  _BOT_NICK_: lemon isn't yummy
tell about the lemon factoid:
  _BOT_NICK_: what is lemon
  ,lemon
list known factoids:
  ,
  ,list
  ,factoids
  _BOT_NICK_: list factoids