The girls smile at the camera.
The girls are great friends.
The girls are great friends shows they  smile.
exists e1 x1 x2.(n_camera(x2) & n_girl(x1) & at(e1,x2) & Actor(e1,x1) & v_smile(e1))
exists p1 x1.(n_girl(x1) & exists s1 x2.((x1 = x2) & n_friend(x2) & a_great(s1) & Theme(s1,x2)))