Attempt Number: 3
Error Message: Action not unique compared to other actions chosen from this state before. Choose a new action

Action Reasoning:
Robot1 should move down to tile_3-1 to start painting from the last row, as per the constraint to paint from the bottom row upwards.

New State Description:
- Robot Position and Paint:  - Robot1 is now on tile_3-1 and is currently holding the color white.  - Available Colors:  - Both white and black are available for the robot to switch to if needed.- Tiles with Status:  - Row 0: tile_0-1, tile_0-2, tile_0-3 remain clear.  - Row 1: tile_1-1, tile_1-2, tile_1-3 remain clear.  - Row 2: tile_2-1 is clear, tile_2-2 and tile_2-3 remain clear.  - Row 3: tile_3-1 is occupied by robot1, tile_3-2 and tile_3-3 remain clear.- Adjacency:  - Vertical Adjacency:    - Each tile remains vertically adjacent to its neighboring tiles in the grid.  - Horizontal Adjacency:    - Each tile remains horizontally adjacent to its neighboring tiles within the row.

Action Chosen:
down(robot1, tile_2-1, tile_3-1)
