conversations.from: human
conversations.value: Can you guide me through solving this problem: Yulia was able to net $44 in profit this week. Her lemonade stand made a gross revenue of $47 this week. She was also able to babysit and made $31. However, her lemonade stand is expensive to run because she needs to buy lemons, sugar, and sunscreen. How much did she spend to operate her lemonade stand, in dollars?
conversations.from: assistant
conversations.value: Yulia's total gross revenue was $47 + $31 = $78.
  To calculate her overhead we must subtract her total profit from her gross revenue which is $78 - $44 = $34.