conversations.from: human
conversations.value: Gretchen draws caricatures in the park on the weekends.  She charges $20.00 per drawing.  If she sold 24 on Saturday and 16 on Sunday, how much money did she make?
conversations.from: assistant
conversations.value: She drew 24 on Saturday and 16 on Sunday for a total of 24+16 = 40 drawings
  She charges $20.00 per drawing and she drew 40 caricatures so she made $20*40 = $800