Two men performing in a band.
two men play music
Performing in a band implies playing music
exists e1 x1 x2 x3.(a_topic(x1) & in(e1,x3) & n_band(x3) & Actor(e1,x2) & v_perform(e1) & (x1 = x2) & n_man(x1) & card_eq_2(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_music(x2) & n_man(x1) & card_eq_2(x1))