conversations.from: human
conversations.value: Solve the following math problem: James buys 3 CDs.  Two of them are 1.5 hours each.  The last one is twice that long.  What is the combined length of the CDs?
conversations.from: assistant
conversations.value: The long CD is 1.5*2=3 hours
  The two shorter CDs have a combined length of 1.5*2=3 hours
  So in total the CDs had a length of 3+3= 6 hours