Eight people pose in a line.
Eight people are in a group photo
The fact that eight people pose in a line does not imply that they are in a group photo.
exists e1 x1 x2.(in(e1,x2) & n_line(x2) & Actor(e1,x1) & v_pose(e1) & n_people(x1) & card_eq_8(x1))
exists p1 x1.(exists x2 x3.(in(x1,x2) & n_photo(x2) & of(x2,x3) & n_group(x3)) & n_people(x1) & card_eq_8(x1))