conversations.from: human
conversations.value: Please show me the solution for: John has 3 children. He and his wife are supposed to buy notebooks for their sons but they couldn't agree on how many to buy. So John bought 2 notebooks for each of his children and John's wife bought 5 notebooks for each of them. How many notebooks did they buy in total for their children?
conversations.from: assistant
conversations.value: John bought 2 notebooks for his 3 children: 2 notebooks/child x 3 children = 6 notebooks. The father bought 6 notebooks.
  John's wife bought 5 notebooks for their three children: 5 notebooks/child x 3 children = 15 notebooks. The mother bought 15 notebooks.
  Now, the total number of notebooks is 6 notebooks +15 notebooks = 21 notebooks.