conversations.from: human
conversations.value: Can you break down the solution for me for this math problem: The region east of plain A is 50 square miles less than the region east of plain B. If plain B has 200 square miles, how many square miles do the plains have in total?
conversations.from: assistant
conversations.value: The region of plain A has a total of 200 - 50 = 150 square miles.
  The total number of square miles for both plains is 150 square miles for plain A + 200 square miles for plain B = 350 square miles