A man in a jacket works atop a set of stairs.
Someone is doing construction work.
Someone can be any gender and a man in a jacket that works does not mean he is doing construction work.
exists e1 x1 x2 x3 x4.(atop(e1,x3) & of(x3,x4) & n_stair(x4) & n_set(x3) & Actor(e1,x1) & v_work(e1) & in(x1,x2) & n_jacket(x2) & n_man(x1))
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & n_work(x2) & of(x2,x3) & n_construction(x3) & n_person(x1))