conversations.from: human
conversations.value: Nelly wants to buy pizza for herself and her 14 friends. Each pizza costs $12 and can feed 3 people. If Nelly earns $4 a night babysitting the neighbors' kids, how many nights will she have to babysit to afford the pizza?
  Give me a solution to this problem
conversations.from: assistant
conversations.value: She needs to buy 15 / 3 = 5 pizzas.
  The pizzas cost 5 * $12 = $60 total.
  It will take her $60 / $4 = 15 nights worth of babysitting to afford the pizza.