This man holds a fish while two little girls stand to either side of him.
The fish is a trout
Just because a man is holding a fish, does not mean that fish is a trout.  The man could be holding any type of fish, dead or alive.
exists e1 p1 x1 x2.(n_male(x1) & n_man(x1) & exists e2 s1 x3.(all x4.(n_side(x4) -> (to(e2,x4) & of(x4,x1))) & Actor(e2,x3) & v_stand(e2) & n_girl(x3) & a_little(s1) & Theme(s1,x3) & card_eq_2(x3)) & while(e1,p1) & Theme(e1,x2) & Actor(e1,x1) & v_hold(e1) & n_fish(x2))
exists p1 x1.(n_fish(x1) & exists x2.((x1 = x2) & n_trout(x2)))