Here is a goal: How to change a tire on a vehicle.

How would you accomplish this goal?

OPT:
* First place jack under vehicle, remove lugnuts, remove tire, put on new tire and tighten lugnuts, then lower car.;
* First place jack under and raise vehicle off ground, remove lugnuts, remove tire, put on new tire and tighten lugnuts, then lower car.;
First place jack under and raise vehicle off ground, remove lugnuts, remove tire, put on new tire and tighten lugnuts, then lower car.