Once upon a time there was a big man, with a big field and a shiny, new tractor to keep it all nicely mown. He had a big trailer to carry things in as well.
One day the big man put some children in the back of his trailer and took them for a lovely ride up and down in his big field. He let one of the children steer the shiny, new tractor.
The big man still lives there and he still has a big field. The children are all grown up now and the shiny new tractor has a patina of rust. It still mows the field though!