Person smiles at child inside of playground structure.
The child is happy
Person smiles at child doesn't mean that the child is happy
exists e1 x1 x2 x3 x4 x5.(ne_per_person(x1) & at(e1,x5) & n_child(x5) & Theme(e1,x2) & Actor(e1,x1) & v_smile(e1) & of(x2,x3) & n_structure(x3) & of(x3,x4) & n_playground(x4) & n_inside(x2))
exists s1 x1.(n_child(x1) & Theme(s1,x1) & a_happy(s1))