conversations.from: human
conversations.value: Can you explain how to solve this math problem: John is an eccentric millionaire.  He decides to fill his swimming pool with bottled water.  A cubic foot of water is 25 liters.  His pool is 10 feet deep and 6 feet by 20 feet.  A liter of water costs $3.  How much does it cost to fill the pool?
conversations.from: assistant
conversations.value: The pool is 10*6*20=1200 cubic feet
  That means it is 25*1200=30000 liters
  So it cost 3*30,000=$90,000