Two clowns speak into a microphone.
Two clowns talking.
TALKING AND SPEAKING ARE THE SAME.
exists e1 x1 x2.(into(e1,x2) & n_microphone(x2) & Actor(e1,x1) & v_speak(e1) & n_clown(x1) & card_eq_2(x1))
exists e1 x1 x2.(a_topic(x1) & Actor(e1,x2) & v_talk(e1) & (x1 = x2) & n_clown(x1) & card_eq_2(x1))