A man operating a large yellow bulldozer.
The man is a construction worker.
A construction worker would operate a bulldozer.
exists e1 s1 s2 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_operate(e1) & n_bulldozer(x3) & a_yellow(s2) & Theme(s2,x3) & a_large(s1) & Theme(s1,x3) & (x1 = x2) & n_man(x1))
exists p1 x1.(n_man(x1) & exists x2 x3.((x1 = x2) & n_worker(x2) & of(x2,x3) & n_construction(x3)))