A man and a woman against a railing looking at something.
A group ladies in a dance club.
A man and woman are not a group of ladies, and the man and woman are against a railing and not inside a dance club.
exists e1 s1 x1 x2 x3 x4 x5.(a_topic(s1) & subset_of(x2,s1) & against(x2,x3) & at(e1,x5) & n_thing(x5) & Actor(e1,x4) & v_look(e1) & (x3 = x4) & n_railing(x3) & n_woman(x2) & subset_of(x1,s1) & n_man(x1))
exists e1 x1 x2 x3.(in(e1,x2) & n_club(x2) & of(x2,x3) & n_dance(x3) & Actor(e1,x1) & v_lady(e1) & n_group(x1))