A man in a muddy field sowing seeds.
The man is sowing corn seeds.
Just because a man is sowing seeds does not necessarily mean they are corn seeds.
exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & Theme(e1,x4) & Actor(e1,x3) & v_sow(e1) & n_seed(x4) & (x1 = x3) & in(x1,x2) & n_field(x2) & a_muddy(s1) & Theme(s1,x2) & n_man(x1))
exists e1 x1 x2 x3.(n_man(x1) & Theme(e1,x2) & Actor(e1,x1) & v_sow(e1) & n_seed(x2) & of(x2,x3) & n_corn(x3))