A happy child smiles as he plays.
A child smiles as his father makes a funny face.
Just because a child smiles does not mean that his father makes a funny face.
exists e1 p1 s1 x1.(exists e2.(Actor(e2,x1) & v_play(e2)) & n_male(x1) & as(e1,p1) & Actor(e1,x1) & v_smile(e1) & n_child(x1) & a_happy(s1) & Theme(s1,x1))
exists e1 p1 x1 x2.(exists e2 s1 x3.(Theme(e2,x3) & Actor(e2,x2) & v_make(e2) & n_face(x3) & a_funny(s1) & Theme(s1,x3)) & n_father(x2) & of(x2,x1) & n_male(x1) & as(e1,p1) & Actor(e1,x1) & v_smile(e1) & n_child(x1))