user_prompt: ## Instruction:
  Upon entering the room, there is a left hall and one to the right. The left hall contains a cube slot, while the right hall leads to a button linked with a cube machine that produces a cube. Further ahead, there is a big hall with a platform on the left wall that can be elevated to reach a button at mid-height. Additionally, there is a button high up on the roof.
  The cube is in the cube slot, which elevates the platform to the button at mid-height.
  Pressing the button at mid-height activates the red beam that allows hovering over the rift.
  
  Select the correct options for each blank. Only output option letters one by one, with the format '{Option 1}{Option 2}{Option 3}{Option 4}{Option 5}, such as 'ABCDE'
  Step 1: ________
  Step 2: Collect cube with a portal from the roof.
  Step 3: ________
  Step 4: ________
  Step 5: ________
  Step 6: Press button that is reached with elevated platform (activates gravitation beam).
  Step 7: ________
  Step 8: Make a portal on the ground and one on the wall where the gravitation beam lands and get pulled into the beam to hover across the room.
  Step 9: Exit the beam at the end of the room and go through the final door. Problem solved.
  
  Please select from the following candidate choices. Your response should end with "The final answer is [answer]." where the [answer] is the choice of options. 
  A. Place cube close to the platform.
  B. Place the cube close to the entrance of the hall.
  C. Shoot a blue portal on the ground under the remaining mirror cube to make it drop onto the floor.
  D. Shoot the second portal under the cube. Then walk to the platform.
  E. Stand on platform and shoot second portal under the cube so that it falls into the cube switch and platform where protagonist stands on lifts off.
  F. Enter the room into zone 1.
  G. Make portal close to the roof to press the topmost button on the roof (left close to entrance). This opens the final door.
  H. Press button on the right.
  I. Use the jumper with a blue portal in the jumper target area and an orange portal on the floor.
  J. Place a portal right on top of cube switch.