A large group of people are all leaning against a glass and steel rail.
A group of people leaning and talking
A group of people leaning against a rail doesn't necessarily mean they are talking.
exists e1 s1 s2 x1 x2 x3 x4 x5 x6.(a_all(s2) & Manner(e1,s2) & against(e1,x3) & n_rail(x5) & of(x5,x6) & n_steel(x6) & n_glass(x4) & subset_of(x5,x3) & subset_of(x4,x3) & Actor(e1,x1) & v_lean(e1) & of(x1,x2) & n_people(x2) & n_group(x1) & a_large(s1) & Theme(s1,x1))
exists e2 e1 x1 x2 x3 x4.(a_topic(x1) & Actor(e2,x4) & v_talk(e2) & (x1 = x4) & Actor(e1,x3) & v_lean(e1) & (x1 = x3) & of(x1,x2) & n_people(x2) & n_group(x1))