conversations.from: human
conversations.value: Belle eats 4 dog biscuits and 2 rawhide bones every evening. If each rawhide bone is $1, and each dog biscuit is $0.25, then how much does it cost, in dollars, to feed Belle these treats for a week?
conversations.from: assistant
conversations.value: A week's worth of rawhide bones cost 1*2*7=14 dollars.
  A week's worth of dog biscuits cost 0.25*4*7=7 dollars,
  Thus, in total, it cost 14+7=21 dollars