conversations.from: human
conversations.value: Find a solution for this math problem: Two pieces of bread are needed for one regular sandwich. 3 pieces of bread are needed for a double meat sandwich. How many pieces of bread are needed for 14 regular sandwiches and 12 double meat sandwiches?
conversations.from: assistant
conversations.value: Regular = 2 * 14 = 28 pieces
  Double = 3 * 12 = 36 pieces
  28 + 36 = 64 pieces
  64 pieces of bread are needed for those sandwiches.