A young girl in a black shirt and a blue helmet is sitting on a quad , or four wheeler , with her right hand on the handlebars .
It is highly unlikely that a girl is sitting on a quad as another one races past .
It is highly unlikely that a girl is sitting on a quad as another one races past .
It is probably the case that a girl is sitting on a quad as another one races past .
A girl is sitting on a quad as another one races past .