A group of friends posing by a guard rail.
A group of life-long friends poses before jumping over the guard rail.
A group of friends posing by a guard rail does not imply they are a group of life-long friends posing before jumping over the guard rail.
exists e1 x1 x2 x3 x4 x5.(a_topic(x1) & by(e1,x4) & n_rail(x4) & of(x4,x5) & n_guard(x5) & Actor(e1,x3) & v_pose(e1) & (x1 = x3) & of(x1,x2) & n_friend(x2) & n_group(x1))
exists e1 s1 s2 x1 x2 x3 x4 x5 x6.(n_rail(x5) & of(x5,x6) & n_guard(x6) & a_topic(x1) & of(x1,x2) & a_over(s2) & Manner(e1,s2) & Theme(e1,x5) & Actor(e1,x4) & v_jump(e1) & (x2 = x4) & n_pose(x2) & of(x2,x3) & n_friend(x3) & a_life-long(s1) & Theme(s1,x2) & n_group(x1))