Name the six types of simple machines.
The six types of simple machines are: 
1. Lever
2. Wheel and axle
3. Pulley
4. Inclined plane
5. Wedge
6. Screw
Complete the following task based on the instruction and optional input provided.### Instruction:
Name the six types of simple machines.

### Output:
The six types of simple machines are: 
1. Lever
2. Wheel and axle
3. Pulley
4. Inclined plane
5. Wedge
6. Screw