It seems like you're referring to a diagram, but I can't see or access it. However, I can help you understand where to place the labels typically associated with a diagram involving these components:
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Permanent Magnet: This could be labeled on the part of the diagram that indicates a magnet which provides a constant magnetic field. This is typically shown as a small bar or horseshoe shape.
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Source of Mechanical Energy: This could be labeled on a part of the diagram that represents something like a crank, wheel, or motor that is being used to provide mechanical energy to the system.
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Electromagnetic: This label should be placed next to components that would function as electromagnets, often represented by coils of wire or solenoids that can be energized to create a magnetic field when current flows through them.
If you describe the positions of elements in your diagram, I can provide more specific instructions!