conversations.from: human
conversations.value: John buys 3 spools of wire that are 20 feet each.  It takes 4 feet to make a necklace.  How many necklaces can he make?
  Give me a clear explanation.
conversations.from: assistant
conversations.value: He gets 3*20=60 feet of wire
  So he can make 60/4=15 necklaces