Clarification of Make it Real CAD Challenge

How is the word part defined in the Make it Real CAD Engineering Challenge. It seems to be implied that parts are meant to be mechanical; however, does the term part also include electrical components, or are submissions meant to be purely mechanical. Thank you for reading.

Navigator Robotics
Team 4442X

“Part” would mean a mechanical, structural or electro-mechanical part. It has to exist in the world (and not be a software or other hidden feature), and be able to be 3D printed or manufactured in some other way.

If you are not sure if your design would meet these criteria, please ask a more-specific question.