Attempt Number: 4
Error Message: Action not unique compared to other actions chosen from this state before. Choose a new action

Action Reasoning:
Move robot1 left to tile_1-1 so that it can paint the tile_2-1 below it black, meeting the goal state's requirement.

New State Description:
- Robot1 is now on tile_1-1 and is holding the color black.- Tile_1-1 is occupied by robot1.- Tile_1-2, tile_1-3, tile_1-4, tile_1-5 are clear.- Tile_2-2 is painted white and is no longer clear.- Tile_2-3 is painted black and is no longer clear.- Tile_2-4 is painted white and is no longer clear.- Tile_2-5 is painted black and is no longer clear.- Tile_2-1 is clear.- Tile_0-1, tile_0-2, tile_0-3, tile_0-4, tile_0-5 remain clear and unpainted.- Both colors, white and black, are available for switching.

Action Chosen:
left(robot1, tile_1-2, tile_1-1)
