An older man works his station by the boat dock.
The man is a fisherman.
Not all men are fisherman.
exists e1 s1 x1 x2 x3 x4.(n_dock(x3) & of(x3,x4) & n_boat(x4) & Theme(e1,x2) & Actor(e1,x1) & v_work(e1) & by(x2,x3) & n_station(x2) & of(x2,x1) & n_male(x1) & n_man(x1) & r_more(s1) & a_older(s1) & Theme(s1,x1))
exists p1 x1.(n_man(x1) & exists x2.((x1 = x2) & n_fisherman(x2)))