A security officer uses her radio.
A woman talks into a speaker
Using a radio does not necessarily mean that the he or she talks into a speaker. One can also just listen to the radio.
exists e1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_use(e1) & n_radio(x3) & of(x3,x1) & n_female(x1) & n_officer(x1) & of(x1,x2) & n_security(x2))
exists x1 x2 x3.(a_topic(x1) & into(x1,x3) & n_speaker(x3) & n_talk(x1) & of(x1,x2) & n_woman(x2))