Attempt Number: 1
Error Message: Redundant change-color action

Action Reasoning:
The last action taken was a move to the right, which means the next logical step is to change the color of the paint gun. The robot is currently holding black paint, and the next tile to be painted (tile_0-4) should be black according to the goal state. Therefore, the robot should change its paint gun color to black to prepare for painting the next tile.

New State Description:
Robot1 is on tile_1-4, holding a black paint gun, ready to paint the tile above it.

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