A clown is blowing bubbles.
The clown is making balloon animals.
If a clown is blowing bubbles he can't be making balloon animals at the same time.
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_blow(e1) & n_bubble(x2) & n_clown(x1))
exists e1 x1 x2 x3.(n_clown(x1) & Theme(e1,x2) & Actor(e1,x1) & v_make(e1) & n_animal(x2) & of(x2,x3) & n_balloon(x3))