conversations.from: human
conversations.value: Sixteen boys and 14 girls attended Simon's birthday party. Three-fourths of the boys and 6/7 of the girls brought gifts. How many of those who attended did not bring gifts?
conversations.from: assistant
conversations.value: 16 x 3/4 = 12 boys brought gifts.
  So, 16 -12 = 4 boys did not bring gifts.
  14 x 6/7 = 12 girls brought gifts.
  So, 14 - 12 = 2 girls did not bring gifts.
  Therefore, a total of 4 boys + 2 girls = 6 people did not bring gifts.