The two man are fixing something.
The two men are fixing a busted pipe in a house.
Just because two men are fixing something does not mean they are fixing a busted pipe.
exists e1 x1 x2.(n_man(x1) & card_eq_2(x1) & Theme(e1,x2) & Actor(e1,x1) & v_fix(e1) & n_thing(x2))
exists e1 s1 x1 x2 x3.(n_man(x1) & card_eq_2(x1) & Theme(e1,x2) & Actor(e1,x1) & v_fix(e1) & in(x2,x3) & n_house(x3) & n_pipe(x2) & a_busted(s1) & Theme(s1,x2))