conversations.from: human
conversations.value: Find the answer to the math problem: John orders some pizzas to share with his friends.  There are 20 friends in total, and John wants to make sure each can have 4 slices.  Pizzas are only sold sliced into 8 portions.  How many Pizzas does John need to order?
conversations.from: assistant
conversations.value: John's 20 friends each need 4 slices, so that means 4*20= 80 slices are needed
  Each pizza has 8 slices, so to get 80 slices in total 80/8= 10 pizzas are needed