Final answer:
Without further information on the command '%', it is not possible to confirm if it will move the robot from above 'a1' to below 'd4' by going south and east. The reference materials indicate that Right (East) and Down (South) are required directions for this movement.
Step-by-step explanation:
To determine whether the commands mentioned will move a robot from the square above 'a1' to a square below 'd4', we need to consider the directions associated with these commands. Both 'south' and 'east' correspond to specific commands that would move the robot in the desired direction.
In the reference materials provided, (e) represents Right (East) and (f) represents Down (South). To move the robot from a position above 'a1' to below 'd4', it would require a series of commands that move the robot eastward and southward on a grid. If by '%' the command is given to move the robot either south or east, without further information, we cannot confirm its utility for the intended movement. Hence, based on the information provided, it is not possible to assert the truthfulness of the statement regarding the command '%'. More information on the functionality of the command is necessary.