Two men are fly-fishing in a low murky pond.
Some men have caught a fish.
Just because two men are fly-fishing in a low murky pond it does not mean they have caught a fish.  Some men does not have to be two men.
exists e1 s1 s2 x1 x2.(in(e1,x2) & n_pond(x2) & a_murky(s2) & Theme(s2,x2) & a_low(s1) & Theme(s1,x2) & Actor(e1,x1) & v_fly-fish(e1) & n_man(x1) & card_eq_2(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_catch(e1) & n_fish(x2) & n_man(x1))