A young man in a football uniform is kneeling with the football.
The school quarterback poses on the field kneeling next to the football.
Just because he is in a football uniform doesn't mean he's the quarterback and the location of the football isn't specified.
exists e1 s1 x1 x2 x3.(with(e1,x3) & n_football(x3) & n_football(x3) & Actor(e1,x1) & v_kneel(e1) & in(x1,x2) & n_uniform(x2) & of(x2,x3) & n_man(x1) & a_young(s1) & Theme(s1,x1))
exists e1 e2 x1 x2 x3 x4.(n_football(x4) & n_field(x3) & n_quarterback(x1) & of(x1,x2) & n_school(x2) & for(e1,e2) & to(e2,x4) & r_next(e2) & Actor(e2,x1) & v_kneel(e2) & on(e1,x3) & Actor(e1,x1) & v_pose(e1))