conversations.from: human
conversations.value: Beth had a set of 125 gold coins.  Carl gave Beth a gift of an additional 35 gold coins.  Then, Beth decided to sell half of her coins.  How many coins did Beth sell?
  Give me a detailed solution.
conversations.from: assistant
conversations.value: Carl's gift added 35 gold coins to Beth's 125-coin set, resulting in 135+25=160 gold coins.
  Beth chooses to sell half, or 160/2=80 of her gold coins.