The applied force causes an amount of work to be done, and the machine reduces the applied force needed to do the same amount of work saving you the effort.
(The applied force; causes; an amount of work to be done) (an amount of work; to be done; ) (the machine; reduces; the applied force needed) (the applied force; needed; to do the same amount of work)
The applied force an amount of work the machine the applied force
causes to be done reduces needed
an amount of work to be done
the applied force needed
to do the same amount of work