A young child with a red belt does a demonstration.
The child is eating a cheesebuger.
A child with a red belt doing a demonstration could not simultaneously be eating a cheeseburger.
exists e1 s1 s2 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_do(e1) & n_demonstration(x3) & with(x1,x2) & n_belt(x2) & a_red(s2) & Theme(s2,x2) & n_child(x1) & a_young(s1) & Theme(s1,x1))
exists e1 x1 x2.(n_child(x1) & Theme(e1,x2) & Actor(e1,x1) & v_eat(e1) & n_cheesebuger(x2))