An ice skating couple performs in an arena.
The couple were a man and a woman.
Man and woman does not imply that they performs in arena.
exists e1 x1 x2 x3 x4 x5.(a_topic(x1) & in(e1,x5) & n_arena(x5) & Theme(e1,x3) & Actor(e1,x2) & v_skate(e1) & n_perform(x3) & of(x3,x4) & n_couple(x4) & (x1 = x2) & n_ice(x1))
exists p1 x1.(n_couple(x1) & exists x2 x3 x4.((x1 = x2) & subset_of(x4,x2) & n_woman(x4) & subset_of(x3,x2) & n_man(x3)))