The man on the beach looking for stuff with metal detector.
The man is waving his metal detector around.
man with metal detector need not be waving it around.
exists e1 x1 x2 x3 x4 x5 x6.(n_beach(x2) & n_man(x1) & a_topic(x1) & on(x1,x2) & for(e1,x4) & with(x4,x5) & n_detector(x5) & of(x5,x6) & n_metal(x6) & n_stuff(x4) & Actor(e1,x3) & v_look(e1) & (x2 = x3))
exists e1 s1 x1 x2 x3.(n_detector(x2) & a_around(s1) & Theme(s1,x2) & of(x2,x3) & n_metal(x3) & of(x2,x1) & n_male(x1) & n_man(x1) & Theme(e1,x2) & Actor(e1,x1) & v_wave(e1))