Attempt Number: 5
Error Message: Action not unique compared to other actions chosen from this state before. Choose a new action

Action Reasoning:
Robot1 should paint-down to color tile_2-3 black, as it is a valid move to paint a tile below, aligning with the alternating pattern required for row 2.

New State Description:
- Robot Position and Paint:   - Robot1 is on tile_1-3, holding the color black.- Tiles Status:  - Row 0: tile_0-1, tile_0-2, tile_0-3 are clear.  - Row 1: tile_1-1 and tile_1-2 are clear, tile_1-3 is clear.  - Row 2: tile_2-1, tile_2-2 are clear, tile_2-3 is painted black.  - Row 3: tile_3-1 is painted white, tile_3-2 is painted black, tile_3-3 is painted white.- Available Colors:  - White and black are available for switching.

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