One man showing flash card to the man holding the microphone.
Two women singing into a microphone.
Subject could be either two men or two women.
exists e1 e2 s1 x1 x2 x3 x4 x5.(n_microphone(x5) & a_topic(x1) & to(e1,x1) & Theme(e2,x5) & Actor(e2,x4) & v_hold(e2) & (x1 = x4) & n_man(x1) & n_man(x1) & Theme(e1,x3) & Actor(e1,x2) & v_show(e1) & n_card(x3) & a_flash(s1) & Theme(s1,x3) & (x1 = x2) & card_eq_1(x1))
exists e1 x1 x2 x3.(a_topic(x1) & into(e1,x3) & n_microphone(x3) & Actor(e1,x2) & v_sing(e1) & (x1 = x2) & n_woman(x1) & card_eq_2(x1))