conversations.from: human
conversations.value: William and Harry played 15 rounds of tic-tac-toe.  William won 5 more rounds than Harry.  How many rounds did William win?
  Work out the solution step by step.
conversations.from: assistant
conversations.value: They played 15 rounds and William won 5 more rounds than Harry so that leaves 15 - 5 = 10 round
  There are 2 players and 10 rounds so they each won 10/2 = 5 rounds
  William won 5 more rounds than Harry and they each won 5 rounds so William won 5+5 = 10 rounds