conversations.from: human
conversations.value: I need help with this problem:
  Leila went to the supermarket to buy food for the Christmas party. She bought apples for 5€, sugar for 3€ and carrots for 17€. She paid with a 50€ bill. How much money does the saleswoman return to her?
conversations.from: assistant
conversations.value: To find out how much the saleswoman should give her back, we have to find out first how much she spent. She bought apples for 5€, sugar for 3€ and carrots for 17€, so she spent 5€ + 3€ +17€ = 25€.
  She pays 50€ and the saleswoman must keep 25€, so the seller must give her back 50€ - 25€ = 25€