user_prompt: ## Instruction:
  You enter the main room.
  
  To the right, Room 2 is elevated and inaccessible without unlocking special stairs. To the left, Room 1 is also elevated and inaccessible without unlocking its respective stairs.
  
  In the center of the main room, there is a laser teleport machine. When a cube is placed in the machine’s dedicated zone and the activation button is pressed, the cube is teleported to the end of where the laser is pointing. The exact arrangement of the cube in the machine is preserved upon teleportation.
  
  Next to the main room is a side room, separated by a glass window. In this side room, a laser comes from the ceiling and is connected to three laser slots:
  - The left slot (one dot) is connected to unlocking Room 1.
  - The right slot (two dots) is connected to unlocking Room 2.
  
  Room 2 contains a mirror cube and a laser slot that activates a blue path in the side room.
  
  A button located left of the glass window generates a new mirror cube in the main room.
  
  The exit door is elevated opposite the entrance. It is unlocked by a laser slot positioned left of the exit. A ramp leading up to the exit door is lowered when the laser slot with the same four-dot symbol is activated.
  
  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: Enter the room and fetch the cube next to the laser teleport machine.
  Step 2: Place the cube facing to the right (when looking at the glass window) into the teleport machine. Press the button to activate the laser teleport.
  Step 3: ________
  Step 4: Fetch the mirror cube from Room 2 and bring it down to the main room.
  Step 5: ________
  Step 6: ________
  Step 7: Activate the button on the right of the window to teleport the cube into the side room.
  Step 8: Walk to Room 1 and go up the newly appeared stairs. Shoot an orange portal in Room 1 on the wall where the laser of Room 1 hits the wall. Then go back down to the main room.
  Step 9: ________
  Step 10: Place one mirror cube on the teleport machine facing straight ahead toward the glass wall. Activate the teleport machine.
  Step 11: ________
  Step 12: Walk over to the ramp that lowered, leading to the exit door. After stepping on it, turn around and shoot a blue portal at the wall opposite the laser slot next to the exit door to open it.
  Step 13: Wait until the ramp rises in front of the door, then go through the exit 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. Go to the center room and shoot an orange portal to the white area in the top left at the wall which activates the laser slot in this room.
  B. Destroy the cube in the side room by pressing the button left of the glass window.
  C. Destroy the cube in the side room by pressing the button left of the glass window.
  D. Place a second mirror cube on the teleport machine facing to the right. Activate the teleport machine.
  E. Fetch the mirror cube that spawns in Room 2 room and place it facing to the left (when looking at the glass window) into the teleport machine.
  F. Place a second mirror cube on the teleport machine facing upwards toward the ceiling. Activate the teleport machine.
  G. Go through the orange portal on the floor and while falling down from the wall, shoot a blue portal where you would land.
  H. Fetch the mirror cube that spawns in the main room and place it facing to the left (when looking at the glass window) into the teleport machine.
  I. Go to Room 2 and walk up the newly appeared stairs. Shoot a blue portal opposite the laser slot onto the white piece of wall.
  J. Press the small button and quickly go through the portal to step on the button in the center room. Thus, a cube will be shot from the right room into the center room and halt due to a wall that appears thanks to the bottom button being pressed.