A security officer uses her radio.
A security officer uses her radio to answer an urgent call
A scurity officer does not necessarily use her radio only to answer an urgent call.
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 e1 p1 x1 x2 x3.(Theme(e1,p1) & Recipient(e1,x3) & Actor(e1,x1) & v_use(e1) & exists e2 s1 x4.(Theme(e2,x4) & Actor(e2,x1) & v_answer(e2) & n_call(x4) & a_urgent(s1) & Theme(s1,x4)) & n_radio(x3) & of(x3,x1) & n_female(x1) & n_officer(x1) & of(x1,x2) & n_security(x2))