Man in a green jacket riding a green ATV in the desert.
A man is working on his car.
The man is either riding in the car or working on it, not both simultaneously.
exists e1 s1 s2 x1 x2 x3 x4 x5.(n_desert(x5) & a_topic(x1) & in(x1,x2) & in(e1,x5) & Theme(e1,x4) & Actor(e1,x3) & v_ride(e1) & ne_org_atv(x4) & a_green(s2) & Theme(s2,x4) & (x2 = x3) & n_jacket(x2) & a_green(s1) & Theme(s1,x2) & n_man(x1))
exists e1 x1 x2.(on(e1,x2) & n_car(x2) & of(x2,x1) & n_male(x1) & Actor(e1,x1) & v_work(e1) & n_man(x1))