conversations.from: human
conversations.value: James burned his hand in a freak accident.  It takes him 4 weeks to heal enough to get a skin graft.  After that it takes him 50% longer than that to heal from the skin graft.  How long did he take to recover from everything?
conversations.from: assistant
conversations.value: The skin graft took 4*.5=2 weeks longer to recover from than the previous
  So that means it took 4+2=6 weeks to recover from it
  That means he took 4+6=10 weeks to recover from everything