conversations.from: human
conversations.value: Cory bought a patio table and 4 chairs for $135. The patio table cost $55. If each chair cost the same amount, how much did each chair cost?
  Can you solve this problem?
conversations.from: assistant
conversations.value: The 4 chairs cost Cory $135 - $55 = $80.
  Each chair costs $80 / 4 = $20.