Attempt Number: 6
Error Message: Action not unique compared to other actions chosen from this state before. Choose a new action

Action Reasoning:
The robot should paint the tile directly below it with black to progress towards the goal state requirement for tile_2-2.

New State Description:
- Tile_0-1: Clear.- Tile_0-2: Clear.- Tile_0-3: Clear.- Tile_1-1: Clear.- Tile_1-2: Occupied by robot1 holding color black.- Tile_1-3: Clear.- Tile_2-1: Painted black.- Tile_2-2: Painted white.- Tile_2-3: Painted black.- Tile_3-1: Painted white.- Tile_3-2: Painted black.- Tile_3-3: Painted white.- Robot1: Standing on tile_1-2, holding color black.- Color_white: Available for switching.- Color_black: Available for switching.

Action Chosen:
paint-down(robot1, tile_2-3, tile_1-2, black)
