conversations.from: human
conversations.value: Explain how to solve this math problem: Sarah's age is equal to three times Mark's age minus 4. Mark is four years older than Billy. Billy is half Ana's age. If Ana will be 15 in 3 years, how old is Sarah?
conversations.from: assistant
conversations.value: First figure out how old Ana is right now by subtracting 3 from 15: 15 - 3 = 12
  Next, figure out how old Billy is by dividing Ana's age by 2: 12 / 2 = 6
  Now figure out how old Mark is by adding 4 to Billy's age: 6 + 4 = 10
  Now, to figure out Sarah's age, first multiply Mark's age by 3: 10 * 3 = 30
  Finally, subtract 4 from triple Mark's age to find Sarah's age: 30 - 4 = 26