conversations.from: human
conversations.value: There are 40 ducks in a pond.  50 percent of the ducks are Muscovy and 30 percent of the Muscovies are female.  How many female Muscovy ducks there?
  Can you solve this problem?
conversations.from: assistant
conversations.value: Muscovies: 40(.50)=20 Muscovy ducks
  Female Muscovies:20(.30)=6 ducks