conversations.from: human
conversations.value: Solve the math problem: Maria has 19 cookies. She decided to give her friend 5 of them, and half of the rest to her family. From the rest, Maria decided to eat 2 cookies. How many cookies will she have left?
conversations.from: assistant
conversations.value: Maria wants to give away 5 cookies, so she will be left with 19 - 5 = 14 cookies.
  Half of these will go to her family, which means 14 / 2 = 7 cookies.
  Maria decided to eat 2/7 * 7 = 2 cookies.
  So she will be left with 7 - 2 = 5 cookies.