conversations.from: human
conversations.value: Provide a step by step solution for the following math problem: Three years ago, Bethany was twice the age of her younger sister. In 5 years, her younger sister will be 16. How old is Bethany now?
conversations.from: assistant
conversations.value: First find how old Bethany's sister currently is: 16 years - 5 years = 11 years
  Then find how old her sister was 3 years ago: 11 years - 3 years = 8 years
  Then double that age to find how old Bethany was three years ago: 8 years * 2 = 16 years
  Then add 3 years to that number to find how old Bethany is now: 16 years + 3 years = 19 years