conversations.from: human
conversations.value: Break down this math problem: Bruno wants to buy two and one-half dozens of pens. How many pens will he have?
conversations.from: assistant
conversations.value: Since a dozen is equal to 12, then two dozens are equal to 12 x 2= 24.
  One-half dozen is equal to 12/2 = 6.
  Thus, Bruno will have a total of 24 + 6 = 30 pens.