conversations.from: human
conversations.value: Josh went to the shopping center. He bought 9 films and 4 books. He also bought 6 CDs. Each film cost $5, each book cost $4 and each CD cost $3. How much did Josh spend in all?
  Solve this problem.
conversations.from: assistant
conversations.value: The cost of the films is 9 × $5 = $45.
  The cost of the books is 4 × $4 = $16.
  The cost of the CDs is 6 × $3 = $18.
  Josh spent $45 + $16 + $18 = $79 in total.