conversations.from: human
conversations.value: Break down this math problem: Yves and his siblings ordered pizza and asked to have it cut into 16 slices.  During dinner time, they only ate one-fourth of it. The next day, Yves ate one-fourth of the remaining pizza. Then his two siblings ate 2 slices each. How many slices of pizza were left?
conversations.from: assistant
conversations.value: During dinner time, Yves and his siblings ate 16/4 = 4 slices.
  So the next day, there were still 16 - 4 = 12 slices left.
  The next day, Yves ate 12/4 = 3 slices of pizza.
  Thus, there were 12 - 3 = 9 slices left.
  Then, his two siblings ate 2 x 2 = 4 slices of pizza.
  Therefore, there were still 9 - 4 = 5 slices of pizza left.