A man in a black t-shirt works on a race car.
The man is working on something.
The car is something and the man is working on it.
exists e1 s1 x1 x2 x3 x4.(on(e1,x3) & n_car(x3) & of(x3,x4) & n_race(x4) & Actor(e1,x1) & v_work(e1) & in(x1,x2) & n_t-shirt(x2) & a_black(s1) & Theme(s1,x2) & n_man(x1))
exists e1 x1 x2.(n_man(x1) & on(e1,x2) & n_thing(x2) & Actor(e1,x1) & v_work(e1))