A baby smiling for the camera.
The baby is laughing at the photographer.
smiling doesn't imply  laughing at the photographer.
exists e1 x1 x2 x3.(n_camera(x3) & a_topic(x1) & for(e1,x3) & Actor(e1,x2) & v_smile(e1) & (x1 = x2) & n_baby(x1))
exists e1 x1 x2.(n_photographer(x2) & n_baby(x1) & at(e1,x2) & Actor(e1,x1) & v_laugh(e1))