conversations.from: human
conversations.value: Can you guide me through solving this problem: The parking lot in front of the school has 52 parking spaces. The parking lot in the back of the school has 38 spaces. If 39 cars have parked and 1/2 of the spaces of the back are filled, how many parking spaces are still available in the school?
conversations.from: assistant
conversations.value: There are a total of 52 + 38 = 90 parking spaces in the school.
  Since half of the spaces are filled then, 38 x 1/2 = 19 cars have parked at the back.
  So, a total of 39 + 19 = 58 cars have parked in the school.
  Therefore, 90 - 58 = 32 parking spaces are still available.