conversations.from: human
conversations.value: Grace baked 4 whole pumpkin pies. She sold 1 whole pumpkin pie and gave 1 whole pumpkin pie to her friend. The remaining whole pumpkin pies were each sliced into 6 pieces. Her family ate 2/3 pieces. How many pieces of pumpkin pie were left?
  Give me a detailed solution.
conversations.from: assistant
conversations.value: Grace sold and gave a total of 1 + 1 = 2 whole pumpkin pie.
  Her family was left with 4 - 2 = 2 whole pumpkin pie.
  There were a total of 2 x 6 = 12 pieces made from the 2 whole pumpkin pie.
  Her family ate 12 x 2/3 = 8 pieces.
  Therefore, 12 - 8 = 4 pieces of pumpkin pie were left.