conversations.from: human
conversations.value: Solve the following math problem: Leonard is 4 years younger than Nina who is half as old as Jerome. If the sum of their ages is 36, what is Leonard's age?
conversations.from: assistant
conversations.value: Let x be the age of Nina.
  So, Leonard's age is x - 4.
  And Jerome's age is 2x.
  Since the sum of their ages is 36, then the equation is x + x - 4 + 2x = 36.
  By combining like terms, the equation becomes 4x = 40.
  So the value of x which represents the age of Nina is x = 40/4 = 10.
  Therefore, Leonard is 10 - 4 = 6 years old.