Rewrite the following sentence to maintain its meaning.
The students were instructed to draw a picture on the board.
The pupils were directed to sketch an image on the whiteboard.
Complete the following task based on the instruction and optional input provided.### Instruction:
Rewrite the following sentence to maintain its meaning.

### Input:
The students were instructed to draw a picture on the board.

### Output:
The pupils were directed to sketch an image on the whiteboard.