A baby outside looking up at a leave.
A baby smiles while looking at a leaf.
Just because the baby is looking a leaf doesn't mean that the baby smiles.
exists e1 s1 x1 x2 x3.(a_topic(x1) & outside(x1,e1) & a_up(s1) & Manner(e1,s1) & at(e1,x3) & n_leave(x3) & Actor(e1,x2) & v_look(e1) & n_thing(x2) & n_baby(x1))
exists e2 e1 x1 x2.(while(e1,e2) & at(e2,x2) & n_leaf(x2) & Actor(e2,x1) & v_look(e2) & Actor(e1,x1) & v_smile(e1) & n_baby(x1))