conversations.from: human
conversations.value: Break down this math problem: Edgar eats 18 pretzels a day. If his brother eats 1/2 as many, how many does his brother eat in a week?
conversations.from: assistant
conversations.value: His brother eats 9 pretzels a day because 18 / 2 = 9
  His brother eats 63 in a week because 9 x 7 = 63