Three friends making faces for the camera.
It's a school photo.
Just because three people are taking photos together does not mean they are doing so for school.
exists e1 x1 x2 x3.(n_camera(x3) & for(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_make(e1) & n_face(x2) & n_friend(x1) & card_eq_3(x1))
exists p1 x1.(n_thing(x1) & exists x2 x3.((x1 = x2) & n_photo(x2) & of(x2,x3) & n_school(x3)))