A man makes an announcement to others on a microphone.
A man listens to his headphones
It cannot be inferred that the man making an announcement into a microphone, is also listening to his headphones.
exists e1 x1 x2 x3 x4.(Theme(e1,x2) & Actor(e1,x1) & v_make(e1) & on(x2,x4) & n_microphone(x4) & to(x2,x3) & -(x3 = x1) & n_person(x1) & n_person(x3) & n_announcement(x2) & n_man(x1))
exists e1 x1 x2.(to(e1,x2) & n_headphone(x2) & of(x2,x1) & n_male(x1) & Actor(e1,x1) & v_listen(e1) & n_man(x1))