conversations.from: human
conversations.value: Mr. Salazar had seven dozen oranges. He reserved 1/4 of it for his friend and was able to sell 3/7 of the remaining yesterday. Today, he saw four rotten oranges. How many oranges are left to be sold today?
  Work out the solution step by step.
conversations.from: assistant
conversations.value: Mr. Salazar had 7 x 12 = 84 oranges.
  He reserved 84 x 1/4 = 21 oranges for his friend.
  Ha had 84 - 21 = 63 oranges to be sold yesterday.
  But only 63 x 3/7 = 27 oranges were sold yesterday.
  So, he had 63 - 27 = 36 oranges left.
  Since four oranges are rotten, then only 36 - 4 = 32 oranges are left to be sold today.