A child is standing on her head.
The child is wearing a white shirt.
Not every child is wearing a white shirt.
exists e1 x1 x2.(on(e1,x2) & n_head(x2) & of(x2,x1) & n_female(x1) & Actor(e1,x1) & v_stand(e1) & n_child(x1))
exists e1 s1 x1 x2.(n_child(x1) & Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_shirt(x2) & a_white(s1) & Theme(s1,x2))