A young man with a portable radio raises his arm while speaking on the phone.
Nobody is speaking
The young man is speaking on the phone so somebody has to be speaking.
exists e1 e2 s1 s2 x1 x2 x3 x4.(n_phone(x4) & while(e1,e2) & on(e2,x4) & Actor(e2,x1) & v_speak(e2) & Theme(e1,x3) & Actor(e1,x1) & v_raise(e1) & n_arm(x3) & of(x3,x1) & n_male(x1) & with(x1,x2) & n_radio(x2) & a_portable(s2) & Theme(s2,x2) & n_man(x1) & a_young(s1) & Theme(s1,x1))
-exists e1 x1.(Actor(e1,x1) & v_speak(e1) & n_person(x1))