conversations.from: human
conversations.value: Can you break down the solution for me for this math problem: John drinks a bottle of water every half hour.  A normal sudoku puzzle takes him 45 minutes.  An extreme sudoku takes 4 times that long.  How many bottles of water does he drink in that time?
conversations.from: assistant
conversations.value: He drinks a bottle of water every 60/2=30 minutes
  It takes him 45*4=180 minutes to solve an extreme sudoku
  So he drinks 180/30=6 bottles in that time