conversations.from: human
conversations.value: Can you explain how to solve this math problem: Mary has 5 green crayons and 8 blue crayons of different shades. If she gives out 3 green crayons and 1 blue crayon to Becky, how many crayons does she have left?
conversations.from: assistant
conversations.value: She had 5+8 = 13 crayons to start with
  She gave out 3+1 = 4 crayons to Becky
  She will have 13-4 = 9 crayons left