What is the input and output of a lawn mower?

Well, honey, the input of a lawn mower is you yanking on that pesky starter cord or pushing that fancy electric start button. The output? Well, hopefully a beautifully manicured lawn that will make your neighbors green with envy. Just make sure to watch out for any rogue garden gnomes or hidden sprinklers - those suckers can really throw a wrench in your mowing game.