conversations.from: human
conversations.value: Jasmine bought 4 pounds of coffee beans and 2 gallons of milk. A pound of coffee beans costs $2.50 and a gallon of milk costs $3.50. How much will Jasmine pay in all?
  Solve this problem.
conversations.from: assistant
conversations.value: Four pounds of coffee cost $2.50 x 4 = $10.
  Two gallons of milk cost $3.50 x 2 = $7.
  So, Jasmine will pay $10 + $7 = $17.