A fisherman is sorting through the caught fish.
The fisherman is sitting casting his lines.
Answer; One cannot be sorting fish while he is sitting.
exists e1 e2 x1 x2 x3 x4.(through(e1,x2) & Time(e2,x4) & n_fish(x4) & Theme(e2,x3) & v_catch(e2) & (x2 = x3) & n_the(x2) & Actor(e1,x1) & v_sort(e1) & n_fisherman(x1))
exists e1 e2 x1 x2.(n_line(x2) & of(x2,x1) & n_male(x1) & n_fisherman(x1) & for(e1,e2) & Theme(e2,x2) & Actor(e2,x1) & v_cast(e2) & Actor(e1,x1) & v_sit(e1))