conversations.from: human
conversations.value: Natalie has $26 to go shopping. She bought a jumper for $9, a T-shirt for $4, and a pair of heels for $5. How much money does Natalie have left?
  Work out the solution step by step.
conversations.from: assistant
conversations.value: The total cost of the clothes is $9 + $4 + $5 = $18.
  Natalie has $26 − $18 = $8 left.