Attempt Number: 2
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 to move closer to the goal state. Since the robot is on tile_1-3 and holding black, it can paint tile_2-3 black, which matches the goal state.

New State Description:
Tile_0-1: clear; Tile_0-2: clear; Tile_0-3: clear; Tile_1-1: clear; Tile_1-2: clear; Tile_1-3: occupied by robot1 holding color black; Tile_2-1: painted black; Tile_2-2: clear; Tile_2-3: painted black. Robot1: on tile_1-3 holding color black. Color_white: available; Color_black: available.

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