A boy is sitting by the water trying to feed a swan.
A boy tries to feed the fish.
The boy cannot feed a swan and the fish at the same time.
exists e2 e1 p1 x1 x2 x3.(n_water(x2) & by(e1,x2) & Topic(e2,p1) & Actor(e2,x3) & v_try(e2) & exists e3 x4.(Theme(e3,x4) & Actor(e3,x3) & v_feed(e3) & n_swan(x4)) & (x2 = x3) & Actor(e1,x1) & v_sit(e1) & n_boy(x1))
exists e1 p1 x1 x2.(n_fish(x2) & Topic(e1,p1) & Actor(e1,x1) & v_try(e1) & exists e2.(Theme(e2,x2) & Actor(e2,x1) & v_feed(e2)) & n_boy(x1))