Two street artists are performing on steps for a group of spectators.
Two guys dance in front of friends.
The two may not actually dance. The group watching may not be their friends.
exists e1 x1 x2 x3 x4 x5.(on(e1,x3) & for(x3,x4) & of(x4,x5) & n_spectator(x5) & n_group(x4) & n_step(x3) & Actor(e1,x1) & v_perform(e1) & n_artist(x1) & of(x1,x2) & n_street(x2) & card_eq_2(x1))
exists x1 x2 x3 x4.(a_topic(x1) & in(x1,x3) & of(x3,x4) & n_friend(x4) & n_front(x3) & n_dance(x1) & of(x1,x2) & n_guy(x2) & card_eq_2(x1))