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

Action Reasoning:
Since tile_3-2 needs to be painted black according to the goal state, the best action is to change the color of robot1 to black before attempting to paint down.

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: clear- tile_2-1: clear- tile_2-2: occupied by robot1 holding color black- tile_2-3: clear- tile_3-1: clear- tile_3-2: clear- tile_3-3: clear- robot1: positioned at tile_2-2, holding color black- color_white: available- color_black: available

Action Chosen:
change-color(robot1, white, black)
