A man and young boy in waders stand in very shallow water.
The man and young boy are fishing.
Just because a man and young boy stand in very shallow water it does not mean they are fishing.
exists e1 s1 s2 x1 x2 x3 x4 x5.(in(e1,x5) & n_water(x5) & a_shallow(s2) & Theme(s2,x5) & r_very(x5) & Actor(e1,x1) & v_stand(e1) & subset_of(x3,x1) & in(x3,x4) & n_wader(x4) & n_boy(x3) & a_young(s1) & Theme(s1,x3) & subset_of(x2,x1) & n_man(x2))
exists p1 s1 x1 x2 x3.(n_boy(x3) & a_young(s1) & Theme(s1,x3) & n_man(x2) & subset_of(x3,x1) & subset_of(x2,x1) & exists x4.((x1 = x4) & n_fishing(x4)))