conversations.from: human
conversations.value: Provide a step by step solution for the following math problem: Julie is making caesar salad for a family picnic. At the market, she spends $8 on green lettuce and $6 on red lettuce. If each type of lettuce costs $2 per pound, how many total pounds of lettuce did she buy?
conversations.from: assistant
conversations.value: The total cost of the green and red lettuce is $8 + $6 = $14.
  Julie bought $14 / $2 =7 pounds of lettuce.