A little boy plays with a water toy while others watch.
There is a child yelling at his pet parrot.
One does not play with water and be yelling at a parrot simultaneously.
exists e1 p1 s1 x1 x2 x3.(exists e2 x4.(Actor(e2,x4) & v_watch(e2) & -(x4 = x1) & n_person(x4)) & n_person(x1) & while(e1,p1) & with(e1,x2) & n_toy(x2) & of(x2,x3) & n_water(x3) & Actor(e1,x1) & v_play(e1) & n_boy(x1) & a_little(s1) & Theme(s1,x1))
exists p1 x1 e1 s1 x2 x3 x4.((x1 = x2) & at(e1,x4) & n_parrot(x4) & a_pet(s1) & Theme(s1,x4) & of(x4,x2) & n_male(x2) & Actor(e1,x3) & v_yell(e1) & (x2 = x3) & n_child(x2))