conversations.from: human
conversations.value: Can you break down the solution for me for this math problem: James paves a new parking lot.  It is 400 feet by 500 feet.  Only 80% of that is useable for parking.  It takes 10 square feet to park a car.  How many cars can be parked?
conversations.from: assistant
conversations.value: The parking lot is 400*500=200,000
  There are 200,000*.8=160,000 square feet of parking space
  That means he can park 16,0000/10=16000 cars