What are the four rules for drawing pentominoes?

The four rules for drawing pentominoes are:

1. Each pentomino must consist of exactly five connected squares, with each square sharing at least one side with another square.
2. The orientation of the pentomino can vary, allowing for rotations and reflections, but the basic shape must remain consistent.
3. No two pentominoes can be identical; rotations or reflections of the same shape count as the same pentomino.
4. The pentominoes should be drawn clearly to distinguish each shape, ensuring that they are easily recognizable and defined.