conversations.from: human
conversations.value: Please show me the solution for: A rectangular flowerbed in the city park is 4 meters wide. Its length is 1 meter less than twice its width. The government wants to fence the flowerbed. How many meters of fence are needed?
conversations.from: assistant
conversations.value: Twice the width is 4 x 2 = 8 meters.
  The length of the rectangular flowerbed is 8 - 1= 7 meters.
  Since the rectangular flower bed has 2 equal lengths, then it needs 7 x 2 = 14 meters of fence.
  The rectangular bed has also 2 equal widths, so it needs 4 x 2 = 8 meters of fence.
  Therefore, the rectangular flower bed needs a total of 14 + 8 = 22 meters of fence.