A man working on a steam engine with a water tower in the background.
The man was fine tuning an engine.
A man can work on a piece of engineering without fine tuning it.
exists e1 x1 x2 x3 x4 x5 x6 x7.(n_background(x7) & a_topic(x1) & with(e1,x5) & in(x5,x7) & n_tower(x5) & of(x5,x6) & n_water(x6) & on(e1,x3) & n_engine(x3) & of(x3,x4) & n_steam(x4) & Actor(e1,x2) & v_work(e1) & (x1 = x2) & n_man(x1))
exists e1 s1 x1 x2.(n_man(x1) & for(s1,e1) & Theme(e1,x2) & Actor(e1,x1) & v_tune(e1) & n_engine(x2) & Theme(s1,x1) & a_fine(s1))