conversations.from: human
conversations.value: I need help with this problem:
  Dina has 60 dolls. She has twice as many dolls as Ivy. 2/3 of Ivy's dolls are collectors editions. How many collectors edition dolls does Ivy have?
conversations.from: assistant
conversations.value: Ivy has 60/2=30 dolls.
  Ivy has 30/3*2=20 collectors edition dolls.